The graphics look so ugly and charmless though... Parappa's face looks fucked up, the backgrounds look kinda ugly and drab, and the white glow around the characters makes shit even worse. Brawl didn't look as aesthetically pleasing and consistent compared to Melee, but still looks a helluva lot better than this.
That said, I'm interested in seeing what other characters make it in, see how obscure they get. Fat Princess is a good start, but Sony's success was made off its 3rd parties. Cloud, Solid Snake, Lara Croft, Claude (GTAIII), Dante... should all be in. And also a Wipeout stage that plays similar to Big Blue.