I'm not saying it's the best. The best is what you are used to and gel with. Also horses for courses and all that
What I'm saying is that functionality wise reaper is pretty superior (I think that is not in dispute) and if you are used to that deep functionality I can't see you move to something else that pretty much do less for you. So basically if you move away from reaper, that means you are not depending on what reaper has to offer
Maybe you can tell what Studio One has that reaper wasn't capable of..... or was it just that reaper was to 'difficult' in some way or another.