Before you go criticising, considering the gts25, the r33 is the best one. the extra weight is due to larger motor, brakes, etc, wider wheel base, better gbox. All in all, better and faster. The r34 gtt has more power and torque, but is once again faster, and is slower than the r33. All in all, the r33 gts-t is the best.
In terms of gtr, have you noticed that the difference in weight comes with an increase in power and torque? The difference in speed that we are talking is minimal. Just .1 or .2 on the 1/4. how consistent are you anyway? less than .1 difference every time? you'd hardly notice it. The r32 is a POS with that gay slow attessa, unless you get the v spec. I had one and i don't like it. I much rather the r33 gtr. much better driving as well as looks
I agree with most of the things you have said except that a Gtt is slower than an r33 gtst.
I have owned 2 R33 GTst's (now have a 33 GTR) and my brother has a gtt, and stock for stock the gtt is definately quicker than a 33 gtst, as well as providing better traction