The later cars were much better built than the earlier cars and had nicer interiors, so a late GTV6 with the look of an early euro Alfetta would be my favorite. There is currently a GTV6 on ebay that has been converted to a euro Alfetta look.
Alfa Romeo:eBay Motors (item 230349747990 end time Jun-23-09 12:02:45 PDT)
I like the look although there are some spots that need some work (front valance looks unfinished). The Ronals are a nice touch.