I've got the 360 version, and they changed a lot of the movesets. Subtly, but enough to make a big change in how they were played. It really evened out the balancing.

- Amy got an expanded moveset from the generic fencer create-a-soul she had in SC3. She still takes a lot of skill to use really well. She barely moves, so now you need to have a firm grasp on the timing of your oppoents moves to weave in.
- While Zasalemel became a lot more playable, the moves chain together a lot easier and many of them are much faster, and telegraph less.
- Ivy became even more unplayable for me at least. I could use her really well in 2, not so much in 3, and now I can't use her at all. Everyone else I know can use her even better now.
- Tira got faster and her chains easier to pull together too.
There's a lot more, but I'll keep it short.

The best improvement is the whole Soul Gauge system, allowing you to kill Turtlers online.
It's still good to see how differently people play online. There's still the cheap shotters who only use 3 moves, but they are cake to beat if you know what you're doing. Even the Kilik spammers. I've fought people who succeed with guarding smartly, those who rely on Impacts. There's others like me who don't bother to guard or Impact, just plow through with staggered timing and a varied list of attacks. I'm pretty good with all the slower characters, which is opposite to every other fighting game I'm good at, where I always use the fast ones.


As for other PC fighting games, see if you can snag a version of Samurai Showdown for the MAME emulators. I downloaded the Neo Geo version for the Wii, and though it is an old series, it's still one of the greatest fighting games. It's not really a PC fighter, but definitely a game you shouldn't miss.