Hmm..
Bronisław Komorowski (President, formerly PO), I always liked him personally and he's doing a decent job so far. I don't regret voting for him in runoff.
Marek Jurek (formerly PiS). All right, he's a far-right winger (although in U.S. he'd still be too moderate for Tea Party
) and I don't really like him. Yet, I respect him sticking to his believes. After all, he resigned from Speakership because of an ideological disagreement. That's something.
Małgorzata Kidawa-Błońska (MP, PO)
There are others, I just need to think more.
Michael Portillo (Post-1997, of course. The Tories really should have elected him as leader in 2001.)
I like his work as an journalist, btw.