Aikido is my main mod (although my skill in it has vastly regressed due to my protracted spat of inactivity last year). My membership in [TA] is a testament to my mod preference.
I loathe ABD with a vengeance, for I absolutely suck at fighting in it.
I'm a fan of rk-mma, wushu, and judofrac myself, iAwesome. The amount of creativity necessary in order to strategize on-the-fly is what endears me to these mods.