Kittens need a lot of attention though, as do strays you've adopted. But they are the lowest maintenance of any pets.
Dogs are great but are like having developmentally disabled children; they require a lot of attention, patience and forgiveness.
And it is possible to find a cat with a lot of dog like qualities. I had an awesome cat who passed away unexpectedly a couple of years ago that was pretty much a dog. He liked to be walked (on a harness) outside, loved water, playing fetch and other things. He turned a lot of my anti-cat friends into cat owners, he was that kind of awesome. RIP Johnny.