Your favorite and why

I don't think I really have a favorite but as far as boxes go I think my Evangelion Movie Limited Box with giant naked Rei on it is the best because it comes with a storyboard bound in a book that is awesome. though I like the others almost as equally. This happens to be my first purchase. Way before I had a LaserDisc player.

As for regular releases I don't have any.

Just anime? Or open for all..?

my bad I meant open for all in general your favorite

It's perhaps a cliche response, but I still greatly cherish the 'faces' Star Wars original trilogy for arguably being the best we'll have for some time (if ever) in presentation and audio for the undoctored releases of episodes IV-VI. I'd rather have these than the revisionist special editions and even current blu ray set but that's purely my personal preference.

I like Laura Branigan concert at Lake Tahoe, USA (American Laser Disc, 1984), The Concert ABBA for LD 1980, Dancing on the Ceiling by Lionel Richie, The Time Machine - Unplaget, the movie Switching Channels (analogue edition, Japanese Laser Disc). My dream is to buy an analog edition Star Wars on LD.
LD with the analog audio sound better than digital and analog music on LD sounds awesome in general. When you begin to listen and watch concerts LD discs (as well as vinyl), there is a feeling that Bud-prisutstvuesh himself at a concert, so all realistic.