Doctor Who Matt Smith

When I drew David Tennant, I promised to make a Matt Smith drawing too. So here is a little sketch. I plan to make a more detailed drawing later.
When I started watching Doctor Who, I was sure that Matt Smith could never beat David Tennant. But then i got to the 5 season and now I can not quite choose, but they are also so different.
What do you think? : P

This is the picture i drew after (the left at the top)
[link]