Brett, check out these two threads. Some good info on all three brands (along with
some misinformation, of course).
http://www.ffcobra.com/forums/showthread.php?t=186274
http://www.ffcobra.com/forums/showthread.php?t=185974
I love my BDR, but I'm a big guy who really appreciates the extra room.
I have seen many great FFR builds and Superfornance certainly makes a very nice car.
Like Bill said, a lot depends on what you want to do with the car. You owe it to yourself to test drive all three, if possible, once you decide on your priorities.
Whatever you decide, you will have a permanent
everytime you drive it or even think about it. Remember Nike's motto: "Just do it!"