PC would be nice but i doupt i could run it so either PS3 or 360 as i have both, though i enjoy using the 360 a bit more
as for the remake themselves, if they ARE going to do it, they need to add to the story, not take away, i'd like to see a bit more in the calm flashback, say a mini boss battle with the surprised sephiroth after he's been stabbed through (ending in him stabbing cloud and the hole, get thrown over the side business)
i would also like to see a bit more done for yufi, her side quests are good, but were never really that great at developing her as a character
the big thing im wondering on if they do voices with it... is cid, i don't want him to not be swearing, like what they did in DOC or AC, because that would ruin the hilarity of his character, i'd at least allow censoring bleeps, because that at least is a little funny if used right.
and finally, if they pay attention to detail on the bustersword, they better do the same on all weapons