His intelligence, between him and Jazzy sometimes I kick myself for getting two super smart breeds at the same time. I don't think I can go back to other breeds, it's great having smart dogs you can talk to with a quick hand movement or even a head tilt and they know exactly what you mean
Also like Lilie says about Hondo, sometimes he'll just sit there and stare at me with his big brown eyes. I've never bonded so quickly with a dog, he'll be a total goofball but then will jump so quickly to just snuggle on the couch so he can get in his cuddle time

He likes to give me a kiss just before snuggling, it's like his "I love you mom" kiss. He's the total package