Mine is Billie... yaaa, I'm a Billie Holiday fan!

The others (strays) are:

Tico (Tom cat in Portuguese)
Maki (umm... sushi)
Pitchu
Dolly
Dooby
and Mini

Have no idea which are the most popular names for cats, but "Frisky" did also come to my mind. I used to have a cat named "Snoopy" many years ago... still like that name alot.