My experience:
=C=s are great tubes for all things rock
I love the Ruby EL34BHT in my XTC
The New Sensor Mullards are so - so (they sound a bit boring)
NOS RFTs are awesome, but they can be bright in a bright amp
JJKT77 are over hyped. I don't like them at all.
Bottom line:
For a bright amp with very high plate voltage, EL34BHTs from Ruby are a good match (and their matching is top).
Everything else, I would go for =C=s. For matching, quality and support I buy from Dougstubes in the US.
Special tip from Larry (Larry's amps): The =C=s sound almost like a real good NOS tube, when thy are biased hotter (78-82%).