Hmm.. I just swapped my Skyline GTS-T for a Tezza..
Both Skylines look in pretty good nick but the white GTS-T looks minty mint.
That would definitely get my vote.
Check the price though. Skyline prices have really dropped and I would think the white one would be worth around £4 to £4.5k in the current market. Engine looks pretty standard aside from the induction kit.