I have a pair of anthems and I like them. I got them because they were a soft flexing boot for park. I also wear them when I ride my old Ride Proflile with EX bindings, a stiffer freeride set-up, and they give me plenty of support. I haven't ridden to many boots that I could compare them to, just a pair of burton's. Don't know what they are called though, but the top is seperate from the bottom for a "skate feel" and I like everything of the nitro's better from the footbed to the laces.
But don't let me make your decision for you, I only ridden in probably 5 pair of boots so I'm no expert. Plus just like everybody else says, buy the boot that fits best and has the flex you want. I think that is why I like my anthems so much because they fit to well I don't have to lace them very tight at all and they stay comfortable that way and give my plenty of flex in our small park.