Diamantes are terrible. Seriously, don't tow anything or else you'll end up looking for a new gearbox.
The Celica GT is shit, the GTS is worth the extra dough.
The Jetta Mk IV is a good car, but the RX8 is better.
If you're like most Yanks though and consider reliability to be the cornerstone of Automotive engineering, then your only option is the Celica.