On 3D Bluray, Tangled and Hugo, I find the 3D really good on them. I got Beauty and the Beast and Lion King 3D too. Lion King was alright, some scene was really good, some was just so so. Beauty and the Beast was a much better conversion. I guess they're getting better and I am looking forward to their next one, I think Little Mermaid 3D.
Titanic 3D conversion was good too for a conversion. Avoid Thor and Conan, those two was rather weak conversion.
Avatar 3D was alright, but it's the one authored especially for the early Panasonic 3DTV. Probably should wait for the extended cut 3D, IMO. But I doubt I'm going to buy it. I just don't like the movie.
I actually went on 3D Bluray buying spree over the holiday, and there are quite a few I haven't watch.
But general rule of thumb, CG Animated film generally look really good in 3D. But the 3D quality varies, For example Tangled is really good, characters look really solid in that one. Tintin was abit more flatter and less solid looking but still ok-ish.
Life Action films, so far only Hugo and Titanic that's good, but doesn't look as solid as those CG Animated films. I got a few more life action films to watch still, but not many impressed me so far. Also 3D movies are better using 16:9 aspect or maybe taller aspect. I still think directors that film their 3D movie in the standard 2.40:1 doesn't get 3D yet.
I find 3D gaming is more interesting than 3D movies. I've been going through the 3D enabled PS3 games list and buying them one by one. Uncharted 3 is really nice a good 3D showcase. Virtua Tennis 4 is good too. Enslaved not so good. Wipeout has really strong 3D. Ridge Racer 7 is not bad. Dynasty Warriors 7 is again not bad. ICO has weak 3D, SOTC has strong 3D and is quite something when you're in the action, but the lighting in those games are quite dated.
I find that for 3D games really need a good lighting engine, if not it can comeout looking like cardboard cut out. For example Motorstorm Apoc, has strong 3D, but their lighting in the game is sort of flat looking so even if the 3D is strong, it still look flat. Anyway I'm going to get a 3D Gaming PC when I'm done going through the PS3 games.