At heart I am a debian user, but a few years ago I made the switch to gentoo. The config files are much simpler and if you compile a lot of things yourself having it resolve dependencies for src packages in a non-broken way is nice. Particularly, I like to compile bloaty apps such as firefox, X, etc with icc, force it to use Fourier-Motzkin and use it's dynamic usecase optimization feature which seems to help alot with branch prediction. I usually get a 30-40% speedup.
Lately though, I've been giving ArchLinux a try. I like the simple as possible, build up instead of strip out philosophy and it's been fairly decent so far.
All of these beat the fedora machine I have to use at work which is almost as bad as windows.







