I can't stand KT's business practices anymore than the next person, but I hate to be that guy that has to say it that: the reason why KT/TN don't do much with the Player Points is because they don't physically make any money from releasing content to be "bought" with PP's (such as the random free costumes with recolours last year). Complaining about an abundance is asinine in that respect.
I'd love to at least try Tamaki some time, though Tina strictly remains my main in DOA. My main in Tekken is Asuka, though. I love doing her counter/hold (4 RP+RK I think) where she makes the opponent do a circular flip like in this video, lol. Imma make a pretty flower outta you!