If its a gtr then out of r32/33 id go r32.
Comparing gtst I would go r33 over 32.
Comparing an r32 GTR with an r34GTT? For a similar amount of money I chose the r34. IMO, a much nicer place to be inside the cabin, more modern, newer car, less kms for $, [yes i know mark skaife has one with less than 15,000kms on the clock but how much would it cost?]. It is a nicer / smoother drive, very similar power from the factory and its not a 10 year old car [i already had a 10 yo and i wanted something much newer].
If money wasnt an issue then give me the NUR spec