I started out with Mighty's roms but after I started using Pyski"s I have never turned back....
http://forum.ppcgeeks.com/showthread.php?t=66993
If you wnat 6.1 its the vol3 6/29 rom and atleast for me it was the best 6.1 rom then....
I hated 6.5 but his last couple of releases have got me to love it...
Going back to stock would be downgrading IMO....
When my phone broke and had to flash it back to stock it sucked, I was so happy to get my refurb to reflash.....