I did a lot of research about 6 months ago, and ended up with a KitchenAid. I forget the exact model number, but it's really really quiet, it cleans well, and it has heated dry. I like it alot.
I did consider a Bosch too, but decided against it for 2 reasons 1) no heated dry and 2) the tines on the bottom shelf are really close together. I actually took a few dishes to the store with me, and found that I couldn't get my bowls to fit on the bottom rack at all because the tines are too close. And even my plates, which have a small ridge around the edge, didn't fit well. No sense in buying a dishwasher that won't fit my dishes!
ETA: To contribute to Suz's comment - one model of the KitchenAid has a potscrubber, where there is an extra super power jet in a particular spot in the dishwasher. You set your really baked-on dish in the spot and pick the potscrubber option, and it will superclean that dish. It's not unique to KitchenAid, several other brands also have something similar.