I think the only answer is… whatever works. Personally I’ve been a Mac user for many years. I’ve owned at least 7 different machines and have been extremely happy with all of them. That being said the only reason I wouldn’t switch to PC is because I’m way to comfortable where I am and can’t justify spending the time to get as comfortable on another machine. Ultimately the music comes from your brain and once you’ve taught it to use your tools your off to the races. Even if you can’t afford a powerful machine it’s not a bad thing. Sometimes the limitations can be freeing!
All the best.