No Tier List in fighting games are truly accurate or finalized but for the most part finding the best and worst characters won't be easy in this game. Considering I don't feel Eliot or P4 is worst myself. Christie so good deserving her own Tier? I also don't agree with.
This is true, however in DOA5 and DOA5U, most of the roster hasn't been seen at higher level play just yet, so it's difficult to even gauge how well most are in the game. We see more variety at higher level play in Japan than we do here.
Another problem is that both U.S. and Japan only have a handful of players that are really good in the tournament scene (10 maybe 20 tops on both sides). U.S. has good Christies, Helenas, an Ayane, a Genfu, and Hayabusa for example. Japan has a Leifang, Kokoros, Akiras, Leon, and Kasumis for example.
You see these characters played in tournaments on both sides of course (well, maybe not Leon for U.S.) but the skill is immensely different from one side to another for certain characters. So we can't really say what a full tier list is in this game right now until we start seeing a stronger representation for the characters in a tournament setting.
Plus, only certain players have been able to take certain characters at a high level more than anyone else so far. Ayane, Zack Rig, Momiji, Mila, Phase 4, etc. And certain characters like Zack is a character more people are picking up because they are realizing how good and fun of a character he actually is.
I've said somewhere else before about Zack, but he is by no means as weak as anyone here thinks he is.
I honestly think (and it really needs to be said) players here at FSD just need to start getting better and decide to take another look at their characters. I say this ALL THE TIME, each strike, throw and hold/parry have their specific purpose, and it is up to the player to figure out what they are for.
A big reason why Ayane players mellowed down so quickly before and after 5U's release is that I reassured everyone maining the character that she is very good. And I've been reassuring myself by continuing to figure her out more throughout 5U.
People have to learn to accept their character for what it is, go with it and take their time trying to figure what something is about. That is the reason why certain players continue to find something new.