I considered a twin turbo years back but bought an ST205 instead; if it was a toss up between a 185 and the GTO, the latter would probably be my choice.
But between the 205 and the GTO TT, I'd say they're pretty comparible cars. Both 4wd turbo (albeit different engines/power), both readily available in UK and JDM models, both the same size (GTO is actually smaller in every dimension except length!), both are pretty reliable except for gearboxes lol
What put me off the GTO was the price at the time, they were a few grand over the 205 for a good MkII, and have a weight figure somewhere in the region of "moon". Plenty of gizmos to go wrong. And apparently the drive quality was said to be a bit uninspiring as well, although I didn't get as far as a test drive in one.