Both, also birds and hedgehogs.
When I was a kid I loved birds more, with me hating cats (because they would kill my birds)
But now both cats and dogs have grown on me and I love them all very much. Currently we have 3 dogs, 2 cats and 1 bird. (the bird and only 1 of dogs and 1 cat is mine)
They are pretty much my children since both the economy and society are making it difficult for me and my partner to be able to be parents of human children.