Specifically, I'm talking about having one "knob" or control that controls multiple parameters across multiple VSTs, with varying ranges. Can Reaper do that? The fact that Ableton can, and Cubase can't, is pretty much the only reason I'm thinking of switching.
They share some qualities, but as the name suggests, Ableton Live is really geared towards live performance use. Logic is more for straight-up production. I mean, people use Ableton Live for production, but I think Logic is more flexible overall. (Because it's simpler, though, Live may be friendlier for people just getting into digital audio production.)
Also, just check out the interfaces: Logic is more for precision work, Ableton is all about getting to your actions quickly, as would be super-necessary when performing live and every millisecond counts.
This accessibility made switch to Live (again) after several years of Logic usage. You'll get great results with both, but after all I realized I value Ableton's straight forward workflow.
And then there's also Max 4 Live, which enables a whole other world of extensibility and tweaking.
The only thing I miss is Logic's low latency mode which is useful if your project becomes big and you need to record another track late in the production progress.
To do this you can "freeze" a collection of tracks in Live. It essentially locks every action you've applied to a track (and perhaps even quietly renders them to temp WAVs) in order to free up computing power.
My (perhaps naive) impression is that Logic seems to be more geared towards recording live music, while Ableton and Reason seem to be more geared towards creating music in the program. They can all do both (recording live and create), but that's just my impression watching their demo videos etc (perhaps describing it as "core strength" vs "geared towards" is more accurate?). I'd love to hear from someone who's actually used one/more of them.
First things first. What I quickly discovered was that Logic _sounds_ better. Just dragging in a sample from you desktop seemed to reveal that logic was processing it in a higher quality. A weird thing, and maybe it's placebo, but everytime I go back to ableton I notice this. Furthermore, the bottom line is, my productions just sounds better in Logic. Maybe it's the workflow it encourages, I'm not sure. All I know is that no serious audio engineer would use anything else than Pro Tools or Logic for a serious recording, and I agree. At least that's my experience.
Regarding Reason: In my opinion, it has some of the best synths in the business. Which is why i rewire into Logic. A couple of youtube tutorials on Thor and you'll be going strong.
Ableton, well, I don't care much for it. The only thing i really miss is how easy it is to manipulate audio in it. A lot of people talk about how fast it is, but the design always seemed to get in my way. Personal preference i guess...
Probably Live's biggest problem in this regard is that it doesn't make it as clear as it could that this kind of stretching is going on.
1. I almost never actually finished anything in it. That's a problem for me in general, but Reason exacerbates it. There are so many knobs to tweak, that I often ended up mired in the minutia of tweaking sounds. I found it hard to stay high level and focus on the music.
2. Compared to, say whaling on a real guitar or keyboard, I found Reason sounded very "dry" out of the box. To get something that didn't sound cheap or reedy, I had to do a lot of set-up: make a synth or two, wire them through a few effects and EQ, tweak everything, add some reverb, tweak some more. I felt like I wanted to decorate a cake, but Reason forced me to go out and thresh some wheat first. This level of control is really powerful if you're into sound design, but made it hard for me to make songs and music.
Of course, your mileage may vary. As far as fun toy to play with, though, Reason is a blast. I spent many a happy hour tweaking and playing with little loops.
It does take a bit longer but you have more control of how things fit in the mix.