the d-pad is the only really bad thing about the 360 controller, but its face buttons aren't responsive enough for a game like dmc, and its shoulder buttons are inappropriate. if i didn't have the hori pad, i'd go with the ps3 version, AA be damned. there are a bunch of them on ebay. you also might try japanvideogames.com, though i seem to have gotten their last one
and yeah, the 360 hori sticks are virtually identical to the basic hori ps3 sticks.