I probably vote for the second as well. I REALLY like the font on the third one, but I suppose it is a little hard to read. Could you reduce the thickness slightly while maintaining the size? If so, I might prefer the third. Nice work!
I like the 2nd one best, but the red background is too much, even the pink background is too much for me. I like the black much better.
Maybe just eliminate the background entirely & make the label bigger? That would make the dog's face easier to see. I think that would be win/win.
Regards, GF.