Here are the results for The Empire Strikes Back:

Tied for 1st - 10 Votes
Yoda
Lando
Boba Fett

Tied for 4th - 9 Votes
Han Solo - Hoth
Princess Leia - Hoth
Luke Skywalker - Bespin
Snowtrooper

Tied for 8th - 8 Votes
Luke Skywalker - Hoth
Han Solo - Bespin
Hoth Rebel Soldier

Tied for 11th - 4 Votes
Bespin Security Guard
Bossk

I believe most of those voting for Hoth Rebel Soldier specified the ones in the trenches as opposed to the tan vest. Just to be sure, state your preference when you are voting for your top 12 from Return of the Jedi, which is now open for voting.