Cats.

Cons:
Make me itchy.
Make my eyes feel like the Sahara.
Bitey.
Claws all over the place.
Shed like madmen.
Illogical levels of stink.
Wtf litter boxes?
Like to sleep on my face.
Don't listen.
Not dog people.

Pros:
KITTENS OMG.
SO FUCKING CUTEEEEEEE!!!!