I have heard that Maverick has some issues. I have never used any other OS. So I have no experience with the others.
But, I have had no glitches with mac mini. But, I believe it's the processor that helps, a faster processor always helps.
Imho, new OS, used with minimal speed processors = troubles. I think that's also a problem with the MS products. But, on a much grander scale, of course. That's why I switched to a mac. Much happier with my mac.