I like that idea too. And I'm going to start calling this "MUBS" (Matt's Underrated Builds Section) around the site. It's fun to type — and even more fun to mutter under your breath in the library!
And I agree with Vazgen's choices, including your Warmonger. I've thought about bumping that so many times. Criminal that it doesn't even have 30 likes.
I'd like to recommend my Stendarr's Wrath build, I just feel that it didn't get enough recognition as a first time build of mine I felt it should have got more recognition, it wasn't like it had a problem with it or anything because I only got one criticism comment, and that was about the spelling of one word.
I'm really hoping that this doesn't turn into another discussion where you advertise your own builds, seems to be taking that route.
I also think that the Warmonger is a great build, but it seems highly underrated.