Well, they beat their wives and murder people. Other than that, they're pretty nice guys. As far as I can tell, there isn't much to that "religion" (actually a world-domination political movement} that makes one a better person. (kill thy neighbor as thyself)
It supports, slavery, lying and murdering (to infidels) honor killing, jihad, child molestation (women are for children but boys are for pleasure) and polygamy. It discourages music and other forms of entertainment.
The entire tenet of Islam is "submit or die"...the reason for the sword on the Sowdie flag.
Pretty nice huh.
(and there's even more yuckiness)