I know there are multiple sourceports available like Rednukem, RedneckGDX and the rather new Raze. I was wondering which one will give me the most faithful and problem-free experience out of the three?

Ideally I want one where playing with Mouselook on and Auto-Aim off isn't an issue, and where there aren't any more bugs than the ones from the game itself.

Which one would you recommend ?