OB is one of my favourite oolongs as well. To me a decent OB has a sort of
honey/fruity/vanilla/caramel flavour that I like because it is not too
heavy. I've come to realise over the last few years that the oolongs I like
are the cooked ones rather than the really green ones, and every decent OB
I've had has had some degree of fermentation involved (and a degree of
colour variation among the loose leaves).

Kat