I voted for super strength although what I'd really want is a frog tongue that would be strong enough to support my weight and it would be crazy long. I'd be able to hitch a ride on top of buses and taxis for free. I'd also want to be able to break the tongue with my teeth so I can shoot out chunks of my tongue to cover people's mouths whenever they insult me. I could also use my tongue as sticky tack.

I know it's disgusting but once you think about it it'd be really useful.