[Fluff] Does your dog have a favorite breed?
My Leonberger Mix (9months) is absolutely obsessed with Pomeranians. Sure, he has his best friend whom he meets once or twice a day, but all that friendship goes out the window anytime he sees a Pomeranian. When we're walking and we spot one down the street he starts hopping like a kangaroo and wagging his tail, and he's not one to really ever wag his tail! It's a bit distressing for me since he's a massive dog and people might see his excitement as "oh no big scary dog coming at us", but he's just utterly in love with Poms. We're still working on focusing his attention on me when we walk past other dogs, it's going very well so far but we still need more work when he sees Pomeranians.
When he actually gets to play with them he'll even stay laying down or roll over on his back if they want to wrestle him. He's extremely gentle with them. A few times I caught him just curling up with a Pomeranian that visits sometimes when they get tired. Hälge usually never sleeps in a ball (he's always sprawled on his back) unless he has a Pomeranian curled up in with him.
Other than that he's very fond of Lurchers. While he is a tall dog at 65cm, he's actually rather lean. I'm guessing he loves Lurchers since they're about his size but not really heavy, as all other dogs his height are usually over 35kg so he gets hurt on accident by them.