After years of playing a warrior main and getting used to have charge/intercept binded to scroll wheel for easy movement before switching to main lock for mop, I kinda expected warlocks to have a similarly intuitive ability to keybind to the scroll-wheel. After trying a few abilities out while first setting up my warlock ui, I found just about all of them to feel clumsy or awkward on scroll-wheel. Its very likely that it was just because of how used I was to the warrior playstyle.
TL;DR what abilit(y/ies) do you keybind to your scroll-wheel.