Escort Cosworth is deffinately at the top of the list. Followed by the MK3 Astra GSi. I still believe that in standard appearance, it sure isn't the quickest or best handling, but it's the best looking hot hatch ever made. Wack an LET in it and some cav turbo rims and it looks and goes like a son of a gun.
I still want to build a MK3 GSi LET some day. I sometimes wish I'd done one instead of my cabrio, but at the time wanted something different. But deffinately love the whole concept of a GSi LET.