Well, both television programs are fatally flawed because none of the protagonists are über-chimps.
In fact, if you ignore Ben’s insect-like bug eyes, then really all of the characters are human beings, so I have to say neither is really very good.
Oh come on, just cause there’s no monkeys?
Apes! Chimps are higher primates, and even your own pathetic human scientists have recently proved that chimps are more evolved … but I digress.
Okay, I’d have to say that I prefer Lost, just because it’s more believable.
How’s that?
Humans with superpowers? It’s just not realistic. (I mean, unless you count self-deception as a superpower.)