Any of the Colnago Masters.
Reasoning is purely subjective - I lusted after one in the early 90's and still do. I'll find one one day, with C-Record throughout. I know they're a bit ubiquitous and the more unusual brands like Zullo and Pegoretti can be more intriguing, but a French bike shop with rows of exotic-paint Masters is one of my defining memories of that era.
"The champions have better bikes, more expensive shoes, many more pairs of cycling shorts than we do, but they have the same roads" - Tim Krabbé