oh yeah, there's often speed/input differences in console ports, lol. gg, cvs2, mbaa come to mind (though i think mbaa's was intentional).
ah, makes sense.
it does matter a bit though, because i take it you were using the 360 version to do the combos on, right? if the 360's display was a bit laggier than the ps3's, then that could be a significant factor (assuming you rely on visual cues and not entirely on muscle memory). however, i trust that you know how much they both lag and wouldn't conduct a test without taking that into account. plus, if you wanna talk about closest to arcade, the bbcs vewlix L here in norcal has a screen that lags by ~2 frames. shrug, just something to take into account.
ideally, we'd do something like nki's test for input lag in ccc super turbo if we really wanted to figure this out once and for all.