i never use linux so i dont know which better
all my rigs run on windows and till now i dont find problem or trouble with windows so i stay
but if you were told that your liner miners could get x2, x5, x10 more than on Windows? Would you decide then to try to mine on Linux?
If that's really the case, why more people using windows instead Linux?
Ease of use, familiarity would be my guess. I use Linux everyday at work, plus other OS's that most people have never heard of and it still takes several hours to get a Linux box mining
Linux:
get AMD/NVIDIA drivers
get newest cmake version
get newest g++ compilier
compile AMD/NVIDIA drivers
disable X
blacklist X from loading
download miner
compile miner
finally can mine, but only after having to google how to do each of these steps and spend hours on stack overflow searching every error that comes while installing
Windows:
get AMD/NVIDIA drivers
install drivers
download miner
start miner