I would personally like to start a vote for "Worst Episode Ending".
I would also like to immediately place 5 votes for Jugheads ending.
The attempt at a "tear jerking" / "OMG" moment as Charlotte starts spouting blood from her nose, was pointless, as anyone who has watched the show knew it was coming sooner or later. Please, oh please, give us better "mini-cliff hangers" then that.