Super Strength would likely be one of the best real world setting powers. Your durability would naturally go up because how would you ever lift a train without the added durability. You're speed would likely increase as well to a very large degree. Poison would likely hurt you, but being very strong and durable would probably cancel out the damaging effects.
I switch my answer to Super Strength.
'Oh shit, a bulle-'
*BANG*
But then, most powers would suck without the reflexes to match. Teleportation? Say you were about to be hit by a car. Without the reflexes, you'd still get smooshed. Same with the adaptability powerset - if I sniped you from a mile away, you're not going to suddenly become bulletproof or whatever.
I also liked The Spot's powers of opening portals. But again, without reflexes, it won't be incredibly useful.
I'd be able to remotely steal stuff, and without ever appearing on camera or having to actually physically be there, it would be the perfect crime.
Cyberpathy would be another amazing one to have.