I totally agree, I use Ableton, cubase and Logic as I mix for clients who use them but I am looking at moving to studio one as my main DAW and I love what I see so far but the ability for an ableton lfo style tool to control any parameter at the click of two buttons like Ableton would be a game changer, even better create a shaperbox style pluggin that can control ANY parameter on any pluggin with two clicks.
Also the ease of pressing the key logo then a parameter then my midi controller and having that controlled as simple as that in Ableton would be amazing in studio one.
Whilst Studio One is so forward thinking, I think the ease of simple connectivity like in ableton would be the dogs!