...Joseph Smith had a beard. Muhammad had a beard. Nebuchadnezzar had a beard. Charles Manson had a beard. oh and John Calvin had a beard.
Joseph Smith did not have a beard, but Brigham Young had one.
Anyways, you should name the positive examples. Jesus wore a beard (but, no, He did not wear long hair), Paul wore a beard. All the disciples had one. Because they followed Christ. That ought to be our example.
PS. What people thinks "look" more or less "good" is irrelevant to the issue as such.