between the X-C and the Rush, I have a Rush, and an XTM X-Terminator...the X-T's overall quality seems to be higher than that of the Rush's...plus, in all honesty, the Rush sucks compared to my RC10GT, so it NEEDS all those hop-ups.
the X-C also comes with a wicked bad engine (XTM's .18). it's more truck than anyone REALLY needs IMO.
and no, I don't work for Global Hobby:P
oh yeah, and all 3 of my LHS's kick arse, I rarely use Tower nowadays. one Jackson bought me a set of RPM A-arms