IMO, 3 was the best imo, just because of the shear amount of options and features. CE would probably be higher if it had Live. I really liked ODST, but I rated it lower on the scale because of the fact that it didn't have it's own MP. Reach was disappointing, but I feel 4 so far has been good. I'm just hoping 343 listen to the community and fix what needs to be fixed.
Gt:Blademeister irrelevent of how good you are make sure if you get a kill...tea bag the holy **** out of the corpse.Then shout abuse at them over the head set