My rares so far are Han, Chewie, Lando and Mara Jade (plus the two from the starter). I'd like to collect more Bespin Guards (I only have one) just because they go well with Lando.
And I have played the game, and I still find the LOS rules silly. Why bother counting all those corners and drawing all those lines? Mustard and I just eyeballed it, but then again we've been playing minis games for years, and this game is aimed more at neophytes than veterans.
One thing you didn't mention in your review, which I thought was crazy, is that every figure in the game, by default, is considered to have a gun with unlimited range. It works really well, and it makes the game easier, and I'm really glad they did it, but wow! It takes a lot of nerve, I think, to go against decades of tabletop convention and just throw out the concept of range. And it takes a lot of cleverness to keep such a game balanced (though the crowded map helps a lot).