I've installed Linux and a FreeBSD and from an user POV they are severly lacking in UI issues, badly!!! If not because some good programs namely for Internet and AmigaOS surelly kicks both of their arses!
More the problems I had with them, I still can't put my xp partition to boot.
I know that Linux is user friendly et all, it only is picky with its friends, but friends like this I want nothin at all, vive l'AROS, vive MorphOS vive l'AmigaOS, cos they still kick some arses (major ones icluded)!!