I have never like Chiuhahuas. There was a time when I thought I wanted a small dog, but I really think I prefer big dogs. Little dogs tend to be nippy & yappy. I have met some very well behaved little dogs, but big dogs slobber more & thunder through the house. IMO, a home isn't complete without a big dog thundering through!
I love Labs! That is just me. While American Labs tend to be leaner dogs & have much more energy, most English(true English) Labs are quite laid back. Granted, they can weigh 100 + lbs. Our Lab loves to lick & play with Lily, but steers clear of Twitch. She is acutally a very smart dog & will let the cats come to her when they want to. Otherwise, she gets out of the way. I have seen her chasing around the house behind the two cats, but as soon as she knows someone is watching she drops to the floor like she was sleeping & looks at me innocentely.
I have heard that Cavaliers have no fear. I know of one that actually rides a horse. The dog's mommy rides her horse & the Cavalier rides another horse, on the saddle holding reigns(sp?) & all. I really want one, but they are a little expensive for me. I think my first dog will be a Lab, preferablly a black. I love black Labs. Then again, I might fall in love with another "pound puppy".