Nope, i'd say Zanket is wrong, and the rest of us are correct. Of course, logic etc isnt necessarily related to real life. Ultimately, all I can say is go talk to your local speed police, and see what they say.
"When the volume of traffic is not an issue, moving over still requires more effort. I’d have to move over frequently."
But ultiamtely, hoggint the lane increases problems, since what happens is a build up of slowed and angry drivers. You, one individual, are feeling smug, but the 12 people behind you arent. So, they outnumber you, right? Then, if you think about the decelerations involved in you creating a long tail of traffic behind you, and then, when you move out of the way, the accelerations. Thats a lot of manouvring, changing of distance between cars. Now, do you think all that happening is safer than you pulling into the inside lane, under control, when theres space?