I once heard someone say “I love that guy – he is such a character.” I all could think was the fellow was full of shit, and I was going to avoid him at all costs. The comment was about personality, not character.
“Personality is what you seem to be. Character is what you really are.” – Alfred Armand Montapert
Personality is a matter of psychological makeup, not created through exercise of free will. Character is built by making the right choices (and learning from the wrong ones). Follow those with good character, not great personalities.