I hate to tell you but it's really just going to come down to testing a few out and finding what you like, there's quite a few really good roms floating around this site with some awesome chefts puttin them together.
If you want to just start off trying to be safe, however, two of the most popular more stable roms tend to be MightyRom and Juicy's rom. Just sort the forum by most viewed and you can easily find out what seems to be more popular than others (still doesnt always mean the best though).
Good luck!
