Just depends on how low you want to go. Whether or not you rub is probably more dependant on the offset of your wheels.

If go with the race drop, you'll really need to get camber kit(s) and performance shocks. You can get both those things with the sport drop as well which is good, but you can probably get away without them without any problems.

Sport will also give a more civilized ride.

I have the sport drop, lowered just a bit more up front with my koni shocks, I like it.

But if the sport drop isn't as much as you like, go with the race, but be prepared for camber issues and get some performance shocks to go with them.