I think the first time I saw a KE1x (Dougs car actually), I was a little... surprised? I wasn't quite sure what to think of it actually. It was really cool, and it was so small and all that, but it was so different to the "corolla" that I was used to. Didn't help that I was used to post-90's cars either, even my own 1981 Corolla seemed "old".
It didn't take long for me to warm up to the KE1x though, now I recon Dougs sprinter is one of the coolest cars out there, and everytime I see a KE1x around it's like "hey that's so cool" :)
I like the styling of KE2x's, especially what Toyota did with the TE27. I don't mind the KE3x, I only really like the 2 door sedans and the coupes really. Don't think much of the 4 door sedan at all. I don't really like what they did with the KE55, and have never really had anything for the KE70's or later (sorry Teddy).
I think generally I'm a big fan of the "old school muscle", which generally equates to dish wheels, flares, and stuff like that. Mustangs, old Celicas, things like that. Old Corollas are kinda like that, just... different.