Originally, I used Dr. T's software on an Atari. Later I used Cakewalk on a PC from early windows until about 2006.
When I discovered Live, I used it exclusively until very recently. Unfortunately, my projects are getting bigger and bigger and every time I approach the 32-bit memory limit, Live crashes.
I recently built a 64-bit system and decided to go back to Cakewalk again. It's quite a bit different from the way I remember, but I still see a lot of old stuff (like CAL hasn't changed much).
I like the idea that it is written only for one platform - nothing against MACs per se, they have Logic. That way the developer's can focus on making it work best for that OS.
If I had my druthers, though, I get something that ran on Linux - but that will be a long ways away, I think.