Ability to control or mentally affect the weather. This includes the ability to generate various natural phenomena (rain, tornadoes, lightning, etc.) or control the intensity of the weather.

Pros: No more rain delays
Cons: Being invited to every outdoor wedding and having to pay for a gift.

Ability to see through solid objects

Pros: Guess who's wearing a thong drinking game (among other obvious benefits)
Cons: Fat girls walking in front of you

Ability to live forever

Pros: Compound interest
Cons: Having more kids than Shawn Kemp

Ability to react faster than a normal human

Pros: Dominate all video games
Cons: Would get bored with Through the Fire and Flames. Though you could have gotten 100% and been YouTube famous

Ability to have intelligence far above genius level

Pros: Would be rich
Cons: Everyone appears to have the intelligence of Jessica Simpson

Ability to control the actions or reasoning of another with the mind

Pros: Imagine Jedi Mind tricks on crack
Cons: Would probably become a slob since you don't have to lift a finger

Ability to render the user unseen to the naked eye.

Pros: Could sneak into the women's locker room
Cons: Constantly dodging people all day

The abilities of extra-sensory perception (ESP) and communication

Pros: Would totally help you pick up chicks
Cons: Would learn just how many people think you're a creep