Another vote for cyan's builds. I went from JF to Cyan about two months ago. I don't use themes or any other tweaks beyond his apps2sd method. You get some nice additions but most importantly the phone is more responsive and the battery life is significantly better. The man is a genius, and even better than that he is very dedicated to the community. I just updated to 3.9.9.10 last night and My Account app is working again! I've been waiting for TMo to fix it for weeks...!