Personally, I'm a sucker for the Turkey Reds. The backgrounds, grandstands, sunsets, pastel colors.......... all make the set, for me anyway, absolutely unparalleled!
It also doesn't hurt that they are the larger size; it seems the older I get, the more I love them
T205 though, is a beautiful set. I think if it gets more love than T3, it's mainly because it's a normal "baseball card", whereas T3s were a send-in premium offer. Many card purists probably don't consider T3s a strict "baseball card", since they weren't available in packs at the corner drug store.
Steve