MONDELE Long time fan of CocoaMySQL. This is slightly nicer in some ways, vastly better in others. Specifically, I find that certain queries run considerably faster in Sequel Pro than they did in CMSQL.
I would like some of the user management that's available in phpMyAdmin or Webmin to be present in one of the GUI tools.
I haven't been using this long enough to really evaluate its stability, but so far so good.
(Version 0.9.5)