This is perhaps more personal taste or biad than anything else. Regarding FreeBSD or BSD in general: some say that BSD is the salt of the earth - and some say the same about SystemV. Most Unices are "best of both worlds" (with varying definitions of "best") and Linux - in general - is farther up the "BSD-side" than some others (AIX for instance). But if you like BSD or SystemV (or one of their descendants) more of find one of them "harder" than the other is about as easily to answer as "is summer or winter better"?
Therefore we stay away from such discussions as a rule here, acknowledging that both sides have their merits.