Casino Royale and Kingdom of Heaven are the 2 best discs I have here if you're talking about Blu-Ray exclusives.About Black Hawk Down,don't you all find the transfer a bit too digital?It's not the grain(that's natural,it's a very intentional grainy movie with lots of contrast)but i did noticed some edge enhancement,digital noise and other factors that detract from that "film like"feeling experience.
So,yeah as for Blu Ray exclusives Casino Royale and Kingdom of Heaven are the best.Also really like the picture of Hellboy a lot.As for non-exclusives watch Happy Feat,World Trade Center,Sahara,Dreamgirls and etc...But you can't miss with the first two tiltles(the orange fleshtones on Casino Royale are completely intentional and mimics perfectly what i saw in the cinemas...actually it looks even better,but don't buy the American version because it's cut the most)