Anyone read Phil Gordon's Little Green Book? He advocates raising a different amount depending on his position at the table. Eg. he raises 2.5-3xbb in early position 3-3.5xbb in middle position 3.5-4xbb in late position and 3x from the small blind regardless of his holding. His reasoning here is that he wants to get most of his money in the pot when in position and drive the big blind out of the pot when on a steal from late position, by giving him a more difficult decision to make facing a larger raise.
This sounds fine when your deep enough to fold comfortably facing a 3bet, but facing a re-shove stack on a late position steal 'late game' with shallower stacks, you would be forced to fold to a 3 bet losing 2 bb's more than what you should have had you of min raised. A raise of 4x the big blind simply isn't needed in today's tournament games, as it would seem that most of the time a min raise of 2x the big blind will do the job most of the time, if stack depths are shallow enough e.g bb has 15-30 bb why raise 4x?. This is something that Gordon fails to mention, which could cost beginners money late in tournaments.
He also doesn't mind his smaller raises from early position, as most of the time he's begging for action with a premium hand!! Seems to be sound reasoning for his strategy, but I think it could easily be exploited in today's game.