It's always been Sylvester for me because Sylvester has a very flexible face which is not the same in repose as it is in animation, which makes it tricky to select an image which works well. He's got a very interesting profile.

The one that I can actually draw best I think is Peter Davison, I don't know why, I think he's got a very simple face, there are very few hard lines in it and yet that can work really well. I like drawing Paul McGann, that's good fun.