Two things will keep you alive, in my eyes.
- A strong flavor. Wardens, Warlocks, and Invokers have this going for them, so they win out despite being "the new kids". I don't care what any of the above say, these guys have a grim sense of style and totally float my boat.
- Stable, balanced mechanics. Fighters, Rogues, and Avengers are dry as toast, but their rock-solid sense of class and interesting mechanics moves them up.
Therefore, I nominate the Ranger. Dear god, the Ranger. I hate to admit this, seeing as I loved the concept of them becoming Martial initially, but taking the Primal out of them has really turned them generic and bland. Twin Strike (for its pushing aside every other at-will) and Hunter's Quarry (for being a bad rip-off of Warlock's Curse and Oath of Enmity
before OoE was even made) seal their fate mechanically. The only thing saving them is their broken damage numbers? All the more reason to drop them.
Also, see what I did there? I gave reasons why I hate them, not just "omg drop warlock its dumb". Come on, guys, even if you have to copy and paste from previous threads, don't clutter the discussion with one-sentence posts.