EverTrainz
Electric Blue
If you ask me, I think that the Class 42s and 52s are pretty unattractive.
Kieran.
I used to think Wizzos were ugly, but then acquired a soft spot after seeing that they handled major express duties in the Western. I've made peace, and may or may not be bringing its ugly beauty to Trainz.

As for the Warships (D800's), they are still unsightly to me...