I haven't played with anything other than Phobos since like my 4th time trying this game. So, I decided to go ahead and get the Nemesis trophy done for fun. I played on Rookie thinking I would suck with the ship, but it's pretty awesome. Those homing shots are insane.
I ended up beating it without dying at all. Not really bragging, it's Rookie after all. But I just kept thinking the ship would be harder to use.
I've read that that's the better ship to start with. I need to try it as I've not yet.
-Better integrated social features
What I mean by this is, it'd be cool if when you logged in, the game could "update" you on your friends' scores...so when I start up Resogun, maybe a little ticker tells me my friend beat my highscore on Arcade, or something like that.
Motorstorm RC did exactly this and it was amazing.