Angela Merkel. I don't always agree with her policies but I respect her enormously. She is a person of great integrity.
I can't think of any others off hand.... quite the opposite. I am in despair at how shabby the politicians are these days - we have a general election coming up and there is no-one I want to vote for!
If I had to choose, it would be Angela Merkel, for the same reasons as Verity gave. The only thing I have been disappointed in what she has said so far is her not budging on letting the UK impose limits on free movement in the UK.