I'll vote for Sakura. Sakura is decent if you upgrade her stars, but the 4 rounds cd hinders her a lot. She's not auto-friendly thou. Also,she combos like crazy.

I'm surprised you don't choose Kabuto. He's beginner's healing god.

sakura if you don't have any other cleanse
kurenai otherwise
unless you are fire, because kurenai is good for her reflection, which is more annoying than most people might think and fire have reflection talent AND they don't stack.
Of course, it also matters on who else you are using and which can complete your chase combos.