Trying to limit myself to 10, and only resculpts (I'd count vintage resculpts as resculpts though, even if they dont' have a modern version yet)...
ANH:
1 ) Rebel Fleet Trooper
2 ) Grand Moff Tarkin
3 ) Dr. Evazan
4 ) Captain Antilles
5 ) Ponda Baba
6 ) Generic Rebel Pilot (OK, not a "resculpt" per se, but I'd take a redeco of an existing army builder headsculpt and a "blue emblem" with black visor helmet... Seriously, I'm easy on this one folks)
7 ) Death Star Trooper (I'm looking for perfect here)
8 ) Ceremony Leia
9 ) Uncle Owen
10) Aunt Beru
ESB:
1 ) Dengar
2 ) Hoth Luke Skywalker
3 ) Hoth Princess Leia
4 ) Capt./Adm. Piett
5 ) General Veers (more articulation, full removable armor/belt, and a removable hat and helmet this time)
6 ) E-Web Cannon (collapsable would be dandy, to-scale a must)
7 ) Snowtrooper Officer
8 ) Bespin Escape Leia
9 ) Carbon Freeze Han (the works)
10) Dak Ralter (a nice generic Rebel Pilot on Hoth)
ROTJ:
1 ) Endor Rebel Soldier (Sergeant... This would be a resculpt of the vested Trooper with a cloth trenchcoat)
2 ) Endor Rebel Trooper (Original Vintage figure in the open Camo coat)
3 ) Gammorean Guard
4 ) Palace Klaatu with fuzzy skirt
5 ) POTF2/Vintage Weequay Guard
6 ) Endor Han Solo (a figure that could be vastly improved upon IMO)
7 ) Wicket
8 ) Admiral Ackbar/Mon Cal Officer (a cheating way to get 2 figures with a "paint variation", haha)
9 ) "Y-Wing Pilot" (The red and underarticulation ain't cuttin' it)
10) General Lando Calrissian