I've used a little of everything. I don't really see a reason why one would be better than the other most of the time. Currently I use three PC's, one 19-n-1, two 60-n-1, and a couple Pi's. I use whatever I think the project needs. If I had to build one tomorrow and it had sufficient space, I'd probably use a x-n-1 for ease, but if it didn't have the games I wanted, I'd use a Pi because I don't have an extra PC and Pis are cheap.