Originally Posted by JFRYE
If you want to compete in MMA you should chose a grappling art that doesn't require you to wear a gi.
This. If you're serious about transitioning to MMA, find an MMA club that offers either submission wrestling, or separate classes in no-gi BJJ and free-style wrestling (or some smorgasbord of standing grappling styles).
The tendency with BJJ clubs is to ignore standing grappling because it's hard on the body and because takedowns/top control aren't as important to the sport as they are in judo, wrestling or MMA.
Judo, on the other hand, isn't a great standalone grappling style for MMA not just because it's platform dependent on the gi, but also because it doesn't allow common MMA submissions and takedowns (such as the guillotine choke, and singles and doubles) in competitions.
Still, anything is better than nothing and you can only train what's offered in your area!