Yes, I know that "best" is subjective, but I've tried several different controllers and none have really clicked so I thought I'd see what other people might suggest.
First, a long time ago even on Live I had an Ice/kin I dearly loved, but then I kinda retired him after a nerf to Ice Slick, where it felt like it was doing knockdown about the same as Freezing Rain does now. In seeing other people use it, it doesn't seem that bad, so I don't know if my memory was faulty or if it's been tweaked since that first nerf. But I loved being able to completely shut down a spawn with it.
However, I wouldn't mind something that can deal damage a bit faster and/or doesn't take quite so long to mature. which I realize is kind of odd to say about controllers.
But, things I like: Being able to completely shut down one, or two(or more!) in an emergency/ambush/accidental pull situation.
Being able to solo when needed with reasonable speed, though I mainly play defenders so "reasonable speed" would probably look different from someone that mainly plays scrappers, for example. Being able to add to the team(no brainer, I imagine most controllers have this in the bag by default, but just throwing it in for completion's sake)
Things I don't want: Storm. Don't get me wrong, I LOVE storm. However, I have a Storm Defender, and a Storm Mastermind I'm running right now, and I'm getting tired of managing the End Bar more than the enemies. However, if the best option is still Storm, feel free to suggest it.
Also on the don't want: Empathy and Pain. Nothing against those two sets, I just don't enjoy playing them, even at high levels with their amazing buffs.
Anyone have thoughts and suggestions?