Being neither wise nor all knowing, I will still offer an opinion.
There are so many talented tyers put their skills and knowledge out there for any interested soul that I tend to look for particular styles or types of flyes instead of particular tryers as a rule. I try to seek out tyers and patterns from different parts of the world or species that I don't generally pursue to see if I can find ideas I can adapt to my situation. Among some of my favourite tyers are Niklaus Bauer and Andreas Andersson, but there are many great tyers willing to share!