Wilke is terrific, Paul's Pipe Shop if you want Arrowhead (or anything else they offer), I check in on The Story Teller's Pipe around holiday time for one blend, Boswell's, WV Smoke Shop -- lots out there.
Other than the smaller outfits, it's SP and of the smaller outfits it's mostly Wilke for me (many blends he puts together I like), the others are one blend maybe two from time to time.