i tried nova. really didnt like it. so ive been using trebuchet for months. recently tried apex and its everything trebuchet should have been. some of the default settings are annoying and needed to be changed but i can finally fix the icon grid.
I've tried them all and agree, SPB by far the best. Looks great on the TP and latest version has updates for tablet/ICS (looks great on my Galaxy Player as well). I love the fact that I can pay once and use it on my various tablets!
Considering there is no result in the market for "apex launcher" you might want to put in a link to where to find this.