I'm kind of surprised that you don't like FMS. I guess that I have to ask, why you didn't like it. That could potentially make a difference in what people may recommend. Until then, I'll offer my suggestions.

RFG2 - I've never tried it. It seems like it doesn't get many favorable reviews here; primarily from those people who have tried it & compared it to the others that you have mentioned.

AFP - Highly regarded by many, especially those who like 3D. I have it & like it very much.

Reflex XTR - You didn't mention this one. I've never tried it, but it too is highly regarded by many here. I believe that it's slightly more expensive than AFP.