I don't think Mormon beliefs are any weirder than any other religions (but they are equally weird) - they just haven't been around as long. So Moses can talk to a burning bush because it was thousands of years ago, but Joseph Smith had the bad luck to be talked to by an angel during the Age of Reason ;).
Anyway, I have a different perspective here in the States because I see them when they come back (I have several good friends who are Mormon). bear in mind that these are 19-20 year old kids who leave university for 2 years to go to a strange land (often speaking a strange language) and basically get doors shut in their faces for that time. It certainly develops a lot of courage for lack of a better world. So they come back here not afraid of anything and go on to become doctors, lawyers, engineers, entrepreneurs, etc., in general incredibly successful people by society's standards. in general a very risk-taking group of people (start a company, make it successful, sell it, start another..) A combo of Western US culture and the nerve gained by the mission.
A pity about the weird beliefs, tho.....