Here is my take.
I've used JagerRom 2.2, SkyRaider 2.2 & CyanogenMOD (CM6T8) 2.2
JagerROM
It was the first one I tried, nothing special in my opinion. It was stable and worked. I used it at the early stages so it may have gotten better, not that there was anything wrong with it, just it didnt set itself apart from the others in my opinion.
SkyRaider
Man I loved this ROM (loved is the operative word). I had 1.8, 1.9 and 2.0 (or 2.2? whichever is the newest). I still flip flop every other day too, on friday I flashed back and forth between CM6 and SR a few times to really compare them, but I digress. Everything works, as a Sense ROM it is one of the best, as a Senseless ROM and it really up there. This ROM is seamless and i HIGHLY recommend it for the average rooter.
CM6
Lets be honest, this is the hackers ROM. The reason I love this ROM and always come back to it in the end is the ability to customize everything. To mess with everything. Sense really is stripped, bloatware really is stripped, its like a naked lite ROM. I think this is faster/smoother than SR but that could be my phone/opinion. If you like tinkering, changing things, make your phone unique, I recommend this ROM. I've had a lot of success with it.
With that being said, you can also just do what I do. Get APPBrain, do nandroid backups frequently and BUY/DONATE to ROM Manager & ClockWorkMod. I flash a new ROM every other day without ever effecting the necessities of my phone (calls, texting, email). CM6 is the ROM for me but hopefully this helped the OP. Asking people gets you their opinions, form some of your own
