It's a shame they don't make the Winged C's anymore, the prices are starting to creep up to NOS levels. (since they are, I suppose). I think they sound better then RFT/Seimens, even if probably not as reliable (I've had two go bad within a couple of months of use).
I've never tried the Gold Lion KT77, but I think the JJ KT77 has got to be the best value in the EL34 game. I paid $85 shipped for a matched quad, which is 1/3 the cost of of Winged C's. People say they have reliability issues (and some also say have gotten better), but at that price I'll forgive them.
My favorite at the moment is the GE fatbody 6CA7. I'd love to try to Psvane Phillips clones.