I have multiple favorites depending on the occasion, but since you seem to be looking for more balanced characters, I would have to say my top three are:
Faust by Muteki, Bobby Ologun by Neat Unsou, and Wonder Woman by Loganir.

Some more OP personal favorites would be: Overlord Nobunaga by ZET, A Geese by kakeypurai, and JqVrmq by Kagenui.