One of my favorites is definitely the new skin that we're making for WeDesign. It's going to be quite fantastic and unique.
Tecca's Elder Scrolls is a really nice theme, I like it for a dark theme with a game specific style.
http://www.tesof.com/
I've not seen a perfect one since gfxforums to be honest. Though I find flaws in everything unfortunately.
Well, perfect - hard to find really. Defining what is perfect in a MyBB forum setup would be a good discussion to have.
We all find flaws in the things we make ourselves - I spend far too much time fretting over daft things like the 1px border colour on a button set for example, or that one of my smilies is not the same style as the rest.... but for themes that others have made I tend to be a bit less stringent. I guess it all comes down to what a user likes.
Mm, in that case maybe gthree and Harajuju will be my favourites.
Didn't we have a thread for this about 3 months ago?