The ex-ameybrook red FAT was (is) incredible. Best build on here so far I think.
Yep, the Klein posted in the link above gets up to the top.
The Black Pace (deserves it's own nick-name) is awesome (hate that word)
There's a nice Yeti owned by a certain someone but can't remember if it's been posted on here or not...
Brusque's white Pinnalce & his Spesh,
Marin Ti's Bonty...
Jezza's Yo is gorgeous and even more so in the flesh.
But, if I have to go for one...
...Rumfy's Psyclone. I've said before that after all has been considered (even more desirable / rare / expensive etc) it is my all-time favourite bike. Fantastic in everyway and '92 was a good vintage for GT.
Have also said before though that it needs a new pair of Mag20 forks to complete the look!