Beaver had several good friends over the course of the show. Who did you prefer?

Larry!!:)

I gotta go with Larry. Larry's unexplained, mysterious disappearance definitely affected the Beav, likely contributing to his seemingly stunted growth-adolescent behavior in later seasons.

For Beaver slash fiction, though, I'd go with Richard.

Larry is my favorite

Larry

None of the above. Harry because he's nice, a real friend.

Larry. They all specialize in getting Beaver in trouble, but Larry is not annoying like most of the others, particularly Gilbert.

The naturally hilarious Larry Mondello. “If I eat my sandwiches first I might not have room for the cake.”