Integra, onkyo, and denon all have audyssey.
Anthem has ARC.
Pioneer and yamaha each have their own calibration software.
From my experience audyssey is the easiest to use and you get more options with the higher end receivers. Whatever you do make multeq the bare minimum you get because the lesser version does not offer a subwoofer eq. With multeq xt32 you actually get a subwoofer eq that sells for $799 by itself from SVS called EQ1? but I believe that it's been discontinued.