I think it's unfare to compare MS2000 with MicroQ.. it's different kinds of synths.
The MicroQ can sound very oldschool and also very soft. But i've never heard it sound as oldschool-cruel and hard as the MS2000.
I think they would make a very good couple in a studio
If you gonna buy one of them and don't have any other synths.. then go for the MicroQ. The MS2000 only got 4 voices.. but thoose voices are totally far out (but doesn't work for everyones ears)