<-- This? It's a GTFO! emoticon meme. But I looked for one without the text to make it less offensive.

Pokemon looks amazing when it's in 3D, and doesn't slow down...

hence the problems.

Bravely default looks adorable, and consistent. So that's my pic.

Super Street Fighter 4 3D looks sooooo better with the 3D turned on

Fire Emblem: Awakening's cutscenes look great in 3D.

I think the flying parts of Kid Icarus: Uprising look great...

Lego City Undercover prequel & Donkey Kong Country Returns 3D, have the same 3D effect, if not slightly better.

You should see Bravely Default: Where the Fairy Flies (Bravely Default: For the Sequel, localized) in 3D too.

Have you played any 2013 3DS games in 3D besides Castlevania Lords of Shadow: Mirror of Fate?

I play most of my 3DS games with the 3D slider turned up to the max. Only time I don't is when I'm tired. 3D Land uses it the "best" for gameplay gimmicks, but I like how it looks in almost all of the games that make use of it. I especially like it in both Zelda games, Kid Icarus, Star Fox, Fire Emblem, Mario Kart, Kingdom Hearts, Paper Mario and Luigi's Mansion.

Virtually any 3D Classic has really great 3D. Mutant Mudds and Cave Story, too. I guess it just works great for 2D games in general.

Ocarina Of Time 3D was pretty good if memory serves. So was Link Between Worlds and 3D Land. Resident Evil Revelations did okay. I haven't gotten an XL but I hear that console really improves the 3D effect.