the bond we share however is the same for all of them....it just appears different.
Here too. My kids are different. In some ways, they're alike. But they have their own quirks, idiosyncrasies, things that make me laugh (often hysterically), things that drive me crazy, and things that cause me to stop what I'm doing and snuggle with them right then and there.
I've always had 2 and usually 3 dogs. I can't say that I've ever preferred one dog to another. I've had a heart dog who seemed to understand me better than the others, but at the same time, I had the other dog that was essentially my life-long partner (who was with me through several relationships til Dh and I got married, several moves, untold adventures and I couldn't imagine life without her) AND I had my dog who ended up being my service dog because he started to alert on my medical condition when he was still a young pup. Once he and I started his training, we became nearly inspeparable and I trusted him literally with my life. Three amazing dogs, three miraculous relationships.
It takes time to develop these relationships. When I have a pup, he's kind of just a pup at first. He's charming and sweet, but it takes a bit of time to see his whole personality. I think that's partly because at first, he's bonding as much with the other dogs as he is with me.
But as he starts to experience the world, gain confidence, learn skills, and I get a front-row seat at all of this, he blossoms more and more, and I see the depth and breadth of who he is as well. And I fall in love. Not "in love" like most people can fall in love with any puppy, but I fall deeply in love with the unique little individual that my dog is, his amazing traits, his weird characteristics (the ones that make me roll my eyes and laugh), the things that make him HIM -- the whole package.
I think if I felt I didn't have as strong of a relationship with one dog as the other(s), I'd feel compelled to do something about it. Take extra trips (around town and out of town) just with him, take agility classes, etc because that says to me that for me, I"m not putting enough of myself into the relationship.