Should I buy?

[Alpha Six]

SF2 doesn't require complicated button inputs like SF4, Blazblue, KOF, etc, because its combos are a lot simpler and don't require loads of effort to chain them together

SF4 is kinda the same to an extent but a lot of characters are a little more complicated

blazblue and KOF you don't even want to fuck with with a free-floating analog stick like the 360/PS3 controllers unless you practice a LOT-- it's either dpad or gamepad for those two, unless you're both fast AND accurate with the control stick. and that takes a lot (and i mean, a lot) of practice to play even decently with it.

most "serious" fighter gamers, you'll find, are using the dpad or an arcade stick-- and if they're using a dpad, they're most likely not playing on the 360. whereas people that are a little more "casual"/don't bother to chain together combos in fighting games, are using the 360's dpad with no problem, or are just using the analog stick.

it's entirely possible to have a "different preference" and that's perfectly okay, but it's pretty much a fact that most people abhor the 360's dpad.