Help me pick a new friend for Mossberg.

[Batty about Banties]

I lost a duckling and the survivor needs a new friend. The opions available are magpies, runners, pekins. The "loner" duckling is a Pekin. I need a duck with good temperament, and will size up well with the pekin. Any suggestions between the options available?

 

[Wifezilla]

Another pekin if those are your only three choices.