rsx>tC>celica. rsx has a slow bottom end, but once u hit vtec, that shit is just awesome. tC has nice low end torque so it picks up pretty quickly, but top end is crap. (celica = cheapest)
I pretty much agree, driving the tC around alot now, i love it... i would definitely take an RSX over a tC any day though. It looks pretty sick though... Once you hit 3rd gear in the tC though, there IS a serious lack of power, especially compared to Honda / Acura cars with VTEC. I'm sure 0-30 its faster than an RSX (maybe even than a Type S), but 30-70... no way, and beyond 70? Not a chance. RSX would win.
Talking stock of course.
In a few months (i talked to the Scion guy when i bought mine) they will have the TRD supercharger as an add-on at the dealership. However, its not available currently. I'm sure there are aftermarket superchargers out by now, and i know for a fact Turbochargers are, i've seen them.
All in all a GREAT car, i really like the interface on the tC's console, its very simple, by no means elegant, but gets the job done. The RSX interface / console is real nice, Acura quality of course.
And you really can't beat Acura for reliability, easily the most reliable car manufacturer that there is.
Just my 2 cents...