New to the rooting world, tried out about 4 different ROMs CM7 Stable, Runnymeade, Relux, and MildWild. Seems like the most difficult step is not the rooting process, but finding a ROM you like!
By far my favorite one is MildWild ->
[ROM]MildWild V-2.6 CE Based on Oxygen 2.3.2 - xda-developers
...it's SUPER fast, no lag at all, stable, good battery life and he has v2.6 which is more colorful and v2.5 which resembles ICS (I'm running 2.5)... I'm so glad I've moved away from Sense!