A Link Between Worlds probably has some of the nicest use of the 3D effect I've seen in a 3DS game, one of the few I've played with the effect on the entire time. Too bad the game itself is way too easy, trite, and mediocre.
It doesn't though, it's very much like DS MODE on the DSi sort of deal. Old games perform about as well as they used to on the old system, I did notice that loading is faster though.
RE: Revelations. Best graphics on 3DS and you can also set the 3D even deeper.