Paw swipe comparison:
A small list of feats comparing who has harder striking strength, in this we do not compare mythos like assumed, or uses the words, probably, could, would, should, maybe, perhaps, I heard, hear say...only genuine first hand accounts can be acceptable in terms a scientific fact.....
Personally.
I am more afraid of a lions paws than I am of his jaws. Talk about uppercuts, left hooks and that sort of prize-fighting fancy shots! A lion is wonderfully clever and he does it without gloves. A lions claws take hold like a fish hook. A tiger or leopard gives with the paws a side slash that cuts like a knife.
https://news.google.com/newspapers?...AAIBAJ&sjid=uzUNAAAAIBAJ&pg=831,1149737&hl=en
(From smallest animals to biggest in order of the lions feats)
Lion hits dog so hard the brains and guts come flying out:
http://chroniclingamerica.loc.gov/l...t=lion+fight+&dateFilterType=yearRange&page=2
Lion breaks female hyenas back with one blow:
https://books.google.com/books?id=z...IBw#v=onepage&q=male lion paw hyena&f=false
Lion kills hyena with one blow:
One of the hyenas, engrossed in the feast and slower to retreat than his
fellows, was killed by a single blow from a lion's paw.
https://www.google.com/search?q=One...bks&ei=U0HEU7_mJ4K6oQSd74LYBw&sa=N&gws_rd=ssl
Lion breaks leopards back with one blow:
https://news.google.com/newspapers?...AIBAJ&sjid=IesFAAAAIBAJ&pg=1047,2002636&hl=en
Lions paw blow flys man 15 feet, and kills another with one blow:
Stone flew 15 feet through the air, while the lion sprang to its feet and made off. A native bearer ran up. The lion killed him with one blow of its paw
http://www.newspapers.com/newspage/30989359/
Lion kills female jaguar with a few blows from the paw:
https://news.google.com/newspapers?...AIBAJ&sjid=sEkEAAAAIBAJ&pg=6579,3977562&hl=en
Lion hits lioness all the way across the cage with one blow of the paw:
A full grown lioness is a large animal, and more than proportionately heavy; yet I once saw a lion, with the very slightest imaginable wave of his paw, dash his mate from the corner of the cage, where she was rearing against the bars, and send her sprawling on her back as if she had been a little lamb
http://books.google.com/books?id=RH...X&ei=SCx_U_GfFsTdoAS9oYDgDg&ved=0CA4Q6AEwBDgU
Lion kills siberian tigress with a blow from the paw breaking its back:
"detroit finally hit her with his paw and broke her back"
https://news.google.com/newspapers?...AIBAJ&sjid=U2QEAAAAIBAJ&pg=3109,5557564&hl=en
Lion breaks another male lions back with one blow of the paw:
broke his rival's back with one swipe of his paw during a performance yesterday. Several hundred persons, including many children were witnesses to the killing.
https://news.google.com/newspapers?...AIBAJ&sjid=9HENAAAAIBAJ&pg=5191,2470922&hl=en
Lion crushes tigers skull with a blow from the paw:
They grappled and rolled and roared and bit each other. And finally in a split second the tiger dropped motionlessly to the ground. Far too quick for the eye to see, but just at the right moment,
this lion, delivered a well-timed blow to the side of the tigers head, and crushed his skull. The lion is a mighty beast.
http://www.google.com/search?ie=ISO...ally+got+in+a+fight?&btnG=Google+Search&gbv=1
Lion kills zebra with one blow of the paw:
https://books.google.com/books?id=G...ei=py1_U4aRK47xoAT7jYKABA#v=onepage&q&f=false
Lioness crushes black bears skull with a blow of the paw:
https://news.google.com/newspapers?...AIBAJ&sjid=cigDAAAAIBAJ&pg=3652,1785493&hl=en
Lion caves in donkeys neck bones with a blow from the paw:
https://books.google.com/books?id=z...6AEwAA#v=onepage&q=lion devoid donkey&f=false
Lion kills horse with one blow of the paw:
'These he had endeavoured to dislodge, but, insufficiently armed, he was compelled to beat a retreat, after losing one of his horses by a single blow of a lion’s paw.
http://books.google.com/books?id=Eb...ei=uTJ_U-uxE8P9oAT_-4CIAQ&ved=0CAgQ6AEwATiCAQ
Lion kills european brown bear with one blow of the paw:
The bear, not liking this kind of salutation, growled, and endeavoured to parry it. This made the lion angry when,
with one- fell swoop, with his paw, as the story goes, he laid the bear dead at his feet.
http://books.google.com/books?id=Io...a=X&ei=6zR_U8D1HNDdoATcioFI&ved=0CAYQ6AEwADgU
Lion breaks grizzly bears back with one blow of the paw:
A few years ago an Englishman who had hunted lions In Africa ventured, upon a visit here, to express the opinion that an African lion could whip a grizzly in fair fight. His' opinion was so warmly disputed by partisans of the grizzly that he determined to settle the matter. He brought a full grown lion to this Park and it was put into a cage'along with a grizzly. The lion at once sprang to the attack leaping upon the bear's' back and trying to dig in with claws and teeth. The grizzly sincerely shook him off. The lion again sprang and was again shaken off.
A third time it was shaken off, but this time the lion, annoyed, gave it a swipe with one of its paws, and broke its back killing it with a single blow
http://webcache.googleusercontent.c...ghts+grizzly&hl=en&ie=UTF-8&prmd=ivns&strip=1
http://webcache.googleusercontent.c...ghts+grizzly&hl=en&ie=UTF-8&prmd=ivns&strip=1
Lions paw blow shatters ox's back limb to peices:
But whatever the lion's object, the result of the attack was sufficiently patent, and I have never seen clearer evidence of the marvellous strength of these brutes than the terribly crushed condition of that ox.
The great bones of the leg were splintered and the flesh a mass of black pulp and extravasated blood; and yet there was scarcely a claw-mark upon the skin,—all this injury had been done by the mere force
https://books.google.com/books?pg=P...d=otZp3FqL0swC&ie=ISO-8859-1&output=html_text
Lion smacks down and stuns a female eland with a blow from the paw:
http://books.google.com/books?id=hp...a=X&ei=SrocVMXpDYjYoASKqIK4AQ&ved=0CAgQ6AEwAQ
Lion smacks down a male eland with a single blow of the paw:
http://media-cache-ec0.pinimg.com/736x/1a/96/ad/1a96ad6c1f091102231bef6a49f50079.jpg
http://blog.africageographic.com/africa-geographic-blog/files/2013/12/lion-and-eland-attack.jpg
Some visual proof:
Lioness with paw knocks over tiger:
Lion knocks out another male lion with one blow:
Lion knocks down a tiger with a blow from the paw:
Lion knocks down tiger 3 meters away with one blow:
Feel free to post the bears case. Although the first post's link, states several biologist who implied that bears do not strike with thier paws as a primary method of attack, (they usually embrace, wrestler, grab, pull-in, and use their paws to hold their opponents and lacerate), but still there should be a few paw blow related content out there, sumo wrestlers fight similar to bears, and they do use a sumo-slap doward like whack, that could count as a blow, but since thats the only method, it will not yield a significant amount of force as the lions more boxing like haymaker blows are intended to stun, knock down, knock out and even kil by breaking limbs, backs and crushing in skulls.