Hey Bad.
I did the same thing- I bought the BWU didn't like the Blue Switches, sold it here, then bought the XArmor from Amazon.
I don't know anything about the Ducky but I can tell you ever since I switched to the XArmor (Browns) I've been loving it- there is a big difference in the key switches (at least to me).
From what I've seen here, from trolling a few threads, is the BWU and the XArmor are about the same quality wise- they are both very decent mech KB- IMO.
I would personally go for the XArmor. I would have considered Deck but they don't have Browns
Hope this helps.