Hard one to say. I've watched literally hundreds of Blu-rays and what I may think looks great is not necessarily the same as what you might like.
For instance some older films I think look just fantastic, not despite their visible film grain, but because of it. I also thought the Disney Beauty and the Beast BD looked just fantastic, superb detailing right down to the small mistakes the artists tried to paint over. To me this is even more of a thrill than the prisitine clarity of something like Toy Story 3 (although I appreciate Pixar's exceptional transfers as well).
Of course there's nothing wrong with typical crowd pleasers like Avatar and Tron: Legacy. I do however get slightly upset with the notion that everything on BD needs to look pin sharp and grain free. There are a lot of films who's transition to BD are marred by this narrow minded viewpoint.