Hi Wayne,I'm not very knowledgable about speakers. Partly because they're so expensive, and I never have the spare $$$ to try them out! I have a custom 2x12" cabinet, and it is loaded with Mesa/Boogie Celestions, but I can't remember what they're called. I *think* they're more or less a slight variation of the G12H80.
I've heard lots of good things about Celestion Vintage 30s. But indeed a lot does depend on the kind of music you want to play, and the kind of cabinet you plan to use. Lots of folks love Weber speakers. And I was talking to my uncle the other day, and he helped a friend choose a new speaker for his Fender BF Deluxe -- and the best match they found for that amp was a Jensen.
So many choices! For the best prices on Celestion, check out www.avatarspeakers.com. They often have clearance specials on Celestions, but even their normal pricing is competitive.
Hope this helps. Perhaps others who are more knowledgable about speakers will chime in.
Best,
philip ruetz