I got a Bosch. Happy with it since it's silent, but I'd check with consumer reports and get the model number. Keep in mind your local quality of water and how often you operate it will dictate how long it will last.

Also if your changing the dishwasher, I'd make sure to keep the old connection to the current dishwasher (even hooked to the internal plumbing) since some of the new kits don't play well with older plumbing.