Interesting to note that there are very few voices of dissent; however, I'm still not putting any hobbies or interests on my CV!
I think age and experience make a difference; if you're fresh from college or have not had many jobs, a PPL may be a factor in making your CV stand out from the others. However, once you get to a certain level, managers initially look for experience and qualification ( in the broadest sense), not hobbies. Honestly.
If I apply for a job as Finance Director, all the board are interested in is my previous experience (the qualification is a given). If I get to second interview stage, then interests may be the sort of thing to talk about.
A CV sould be no more than 2 sides of neatly typed A4; when you are of a certain age, there's no need for padding!!!
Cheers
Whirls