I un-expectantly seem to be using 4 different linux OS's Symphony (2008.1) (dual boot PC) Linpus (net book) Ubuntu (laptop) Kubuntu (shared dual boot with Symphony) So what operating systems have you chosen? And why?
I use Ubuntu on my PC and Linux Mint on my Laptop; both dual-booted with Windows Vista, which rarely use.
Mostly Linux Mint, but occasionally I'll try out another for a while. But I always come back to Mint.