Free Step Dodge

Ayane.

I use to play her.
I play Nyo and Kasumi

Aye,you have to put in a lot of work tho,especially with Pai,cause you'll have a harder time if you're not ok at mixing up opponents.

Why don't you still play her?

Pai is a lot harder than Kasumi, but the payoff is worth it with potential guaranteeds and resets that is moderately better than Kasumi. You have to be committed to make more reads with a downside that you do far less damage. However, due to DOA's mechanic, it is far easier to manage than her VF counterpart. HiC throws or CH damage will boost Pai's offense damage with the proper reads and more damage due to walls.

However, you'll have to really sitdown and play her. Compared to Ayane, Ayane has a much easier time dealing with the cast and likely to make less reads than you have to using her. Pick one that will suit you better, but the rewards Pai gives is worth it if you know what you are doing.

Pai's uniqueness are similar to Rig, Jacky, Christie, Sarah, Kasumi. You have advantage along with light negative moves with fast recovery. You could be at -3 and still blow someone up because her recovery sneaks off the opponent's reaction to do a strike return.

If you really want to learn Pai, check out my friend Code & @Timasty 's Pai guides. Just be sure to ask yourself "Is this the right character for me."