On a purely subjective level, We love basswood for its exceptional flavor (late Spring frosts can mean "years" between harvesting any around here sometimes), tupelo for a strange spicyness (we always bring some back when travling south). There are some 'specialty' honey's from Italy and France that fetch some pretty high dollars, but I've never knowingly tried them. Tried some Kenyan and S African honey's awhile back, must've been some kind of local 'wildflower' honey, diferent, but still honey. Wildflower and trees is/are 'our' most common honey's I suppose (and likely, our most consummed).
thomas