I prefer 6 tops - you just have to adjust how you play
Imagine you're in a tourney (well you are LOL but I mean a BIG one) where all the players hit the tables with the same stake. The blinds are relatively low (proportional to everyone's stake) etc etc.
One common theme I find in my play on 6 tops is that the play prior to the first up in the blinds is VERY loose... people play all sort of trash just because the price is right. To some degree, because of the lower number of players and the need to build a stake early thereby, I buy into this. But, I still won't play Q4 off or total trash.
Generally, especially at lower stakes (which is what I play), you can figure people to do some pretty silly things. A tight player with a little bit of savvy can almost always get their buyin back at a minimum.
Well, that's my two bits anyways..