@Ussop:
I don't get it why you guys want rebecca to eat the fruit. She has the "dodge and not hurt enemy" fighting style, it doesn't go well with the fruit that spams fire at the enemy , she would have to change her style completely.
Actually the Mera Mera fits her fighting style perfectly. She is extremely fast and has advanced CoO (obviously), so eating a elusive logia would basically turn her into a Monet on crack.
And as for not hurting her enemies, well she has no issues dropping her opponents into a pool of vicious fighting fish, so her moral code seems more like "karma is a bitch" than "I don't hurt my enemies no matter what". If people run into her firewalls or touch her hot body it's their own damn fault, I say!
But yeah, the biggest reason against Rebecca is that the Blackbeard Pirates are after the fruit. She wouldn't be safe unless Burgess changes his mind about getting the Mera Mera no Mi.