I think you should go and test drive all the cars, work out which one you like the most.. don't buy something "just cos it goes 0.3 seconds faster".. buy it cost you like it, it's fast, it's got what you want, it's comfy.. you can always modify it later easily catching whatever other car you might have bought.
personally, I wouldn't get a supra - because for $20,000 (which an N/A '94 model is going to cost you) you can get a '96/'97 SII r33 or even a '89 R32 gtr..
that and supra's have to have the CRAPPEST boot ever made - also ppl before flaming me, I was looking at getting one of these, still think they are better looking cars.. but I can't beat my '98 gts-t.. just love it..