what type of fishing? Care about rubber vs. felt, cleats vs. uncleated? I've been lookin too, thinkin about getting a rubber pair in addition to my 2 felt pairs.
$40 range: I've had a few Denier pairs in my life, one from Cabelas and another from Pro-Line, I think. They were decent. Comfortable, if a bit warm in summer, but they don't last forever. Cabelas has a Willow Creek model for $40 that look interesting to me, but haven't tried them. Felt only on those.
$50-$70 - I've had Cabelas ultralights, which were the most comfortable I've ever worn but they only lasted 1 season of heavy fishing. $60 now, and they now come in lug soles as well as felt. Frogg Toggs has 2 models that fit in this price range as well that look interesting, though I've never tried them. Both are felt only, have to pay significantly more for rubber.
$70-$80 - I have a Cabelas guidewear pair that I'm happy with, cleated felt. Chota design. Think they just came out with a cleated rubber version in the last month or so. Hodgeman Bear Creeks, Frogg Togg Anuras, and Korkers Cross Currents peaked my interest recently. The Anuras are the rubber soled version of one of the cheaper models. Chota used to have a really nice boot in this price range as well, my favorite I ever got, but I can't find em now....
I've never considered anything higher than this price range, so you're on your own if you go higher. Looks like you gotta go $100 and higher for any of the new "sticky" rubbers, like Vibram....