Lots of hate for hexflash
I don't know why people hate hexflash so much, lots of people just call it garbage and don't give it a second glance. Annie players like myself love it. It's hard to use it as an escape unless you channel it preemptively, but to engage over walls and challenge objectives, and even catch your lane opponent off guard, it can be glorious. It is a very niche ability.
I figured hey, maybe I could try to make a list of champions that could make good use of it here.
Annie obviously
Kennen is the next obvious one, as well as any other champion that primarily uses flash to engage.
Amumu potentially, that would be pretty hilarious to see, Amumu just appears under tower and ults you lol
It could put champs like Braum or Leona in position for a good unexpected ult, but that's a bit of a stretch
Morgana? Sure! Just make sure you at least have a stopwatch first.
I saw a smart Gragas using it. His ganks were pretty intense.
I could also imagine it being used for some crazy initiations with Jarvan, Malphite, Maokai, Vi, and WU KONG.
Potential funny picks with it, that I wouldn't take too seriously, could be Singed, Swain, Volibear, and... This is a scary thought... Katarina.
It's all about how creatively you use it, but I like the versatility it can bring and the way it can allow for more sick flash initiates than before. If you don't like it... you probably aren't using it on the right champions?
Edit: Someone in comments mentioned Alistar and I really don't know how I didn't think of that one before
can channel it while her claw is in motion. That way you can E>Flash on demand every 20 seconds.
and
(you can use it from bushes and still have your jump)