This being one of my favorite threads on the forum, I think it is time to make a small contribution. Although I mainly sell frames from the famous Italian brands (Colnago, Pinarello, etc.) I personally like frames from the smaller brands a lot more. Especially those built in the late 90's / early 2000.
Here are my two personal favorites. A Casati Armonia (Columbus NEMO) and a SOMEC Mercury. Both feature beautifully executed fully internal cable routing, fillet-brazed tubing, a uni-crown fork and an amazing paint job. I forgot to weigh in the Casati, but the weight of the SOMEC frame is 1830 grams.