This is just my opinion but I've owned a mid 70's Pro and a early 70's top model Italvega. I never liked the way the Raleigh handled. It did not feel balanced fore/aft to me and I did not like the clunky way it "turned in" to corners. The Vega on the other hand had a sweet well balanced ride like a proper Italian race bike. Both were about 21"/54cm frames and fit me well.

The bikes have what I would consider equal build quality, equal quality tubesets, and the same Campy NR group. So between the two I vote Vega.