I have both. Code on BM66 is better and deeper, plus it has fantastic license assets and great call outs. The crane, and bits on the turntable make a nice assortment of toys. BM 66's shots have a very Gomez feel and I think it plays a little slow. The code on SW is clever but I wouldn't call it deep, even though there all sorts of achievements if you are into that type of thing. The license assets are solid, though miles behind BM66, but the music is probably better. There obviously isn't much in the way of toys, the hyperloop is fun to shoot and visually a sight, but small screen is probably under utilized and the death star is fairly forgettable as a toy. The game plays quite fast and can feel a little punishing, particularly if it isn't dialed in.
They are about as different as you can get from the same company, so consider the type of game you'd like to own. I go through spells of playing one way more than the other, but if I had to choose one and cost wasn't a factor then I'd go for BM66 as well.
Either way, I think you'll be pleased. Good luck on your purchase.