Just comparing the 3 3/4" lines I'd say Vintage made the better "toys" because starting from day one the figures fit into the ships! It's only been in the last two years I've been able to get a modern Chewbacca into the Millennium Falcon cockpit.
From a collecting standpoint, I think the modern figures are much better to display. If you look at my collection, about 85% of what is displayed is modern. It's much nicer to display the modern figures because because of the superior articulation and accuracy in sculpts, they make better scenes.
All my vintage figures displayed (which I have great fondness for since they are all my toys from childhood) Are displayed standing in one cabinet in my collection room as a museum piece.