I've gone through a couple of self-diagnosed bouts of PF over the years, the most recent after a vacation involving too much walking in sandals with insufficient arch support. After months of toughing it out I found
these Naots, and I couldn't believe how quickly the pain went away. They have terrific support and cushioning and feel fabulous.
These boots have the same removable innersole, which is replaceable when it eventually loses its cushioning (though not all Naots have this construction).
There's a cute-funky-comfortable shoe store near me, and the owner says that his customers like Naot and Dansko for PF.
Recently on the road I bought some of Merrills that were just ok--the last doesn't work as well for me--but a small gel arch support wedge slipped under the removable innersole did the trick.