My playgroup really enjoys playing EDH, in fact I played four games tonight, one of which I won!
The decks in my meta include:
Captain Sisay (mine)
Thada Adel, Acquisitor (also mine)
Reaper King
Wrexial, the Deep Risen
Hanna, Ship's Navigator
Jhoira of the Ghitu
Lorthos the Tidemaker
Nemata, Grove Guardian
Korlash, Heir to Blackblade
Braids (Blue)
Uril, the Miststalker
Momir Vig, Simic Visionary
And I'm probably forgetting some...
As for under-construction, I'm working on a Uril Deck of my own, as well as a Numot the Devastator build. Someone else is working on a Sisters of Stone Death deck (this would be the owner of Reaper King and Wrexial).