DOA5 online is garbage, PSN...XBL it doesn't matter. Thats why I stop playing it because online let players get away with predictable retarded shit. Oh, offline tournaments FTW!!! lol
I definitely agree that DOA online is terrible. But to be honest, if I had Xboxlive I would use it for practice (and I really need the practice). Especially since I know a lot of players. But I'd still host and make it to local gatherings more than anything.