I have a gaggle of YS's, a gaggle of Saito's and 1 OS, the 120. The YS's have the edge in power, the Saito's have the edge in weight but the OS 120 is flat out the most realiable and carefree of them all.
Anyway one of the best things about this hobby is that everyone is different and are free to do whatever they darn well please. I know I rarely listen to anyone else. Just ask my wife