I always try to come up with unusual teams, and I try and avoid using the super common pets. I don't think I used my Anub Idol even once, and I somehow find swap teams extremely irritating ( usually quite beatable, especially with a nice fast rabbit ) so although I did use a Broom, Creepy Crate, Blue Clockwork Rocket Bot team for a whole string of victories early on, I just can't bring myself to use swap pets.
So with that, even though the the Direhorns are about as common as you can get ( which I love since I use a lot of robots ), I will probably be a big hypocrite and play around with my new Stunted Direhorn

At least that is the least common of the Direhorns

I hope they put in more pet rewards for pet PvP achieves, since I am pretty hooked. I only got into this in the last month, but it has been a blast. And this website definitely makes it more fun!