So, I recently bought a new monitor after having to upgrade my video card (turns out my 780 started to catch on fire, which isn't good), and I ended up with pretty much the same must haves.
I ended up narrowing it down to Alienware AW3418DW or Acer Predator X34P, pretty damn near the same price point, same size, fairly close in specs. I ended up snagging the Alienware, as not only did it end up slightly cheaper (had 2 discounts I could toss on, plus ebates), but they also had a way better warranty. 3 years, they ship you out a new one first, plus from reading other people's experience, if you have a dead pixel or unable to overclock your monitor to 120hz (which can happen), they'll swap it out, no problem.
And honestly, couldn't be happier. Don't have any noticeable light bleed, no dead pixels, overclocked like a champ, and is nice and sharp.