Selena Gomez and Demi Lovato are good singers n actresses. I think most people like demi Mehr than selena is because, most characters played Von demz are too innocent than the characters played Von Sel.

Just 4 an example take sonny and alex. Sonny is Mehr cute n innocent than alex. While alex is naughty and bold than sonny!

I think its the same in PPP!(although I did n't saw that film)

Its only my personal opinion! N Am not sure that u agrees with me. ;)

-A great Fan of demz sel n mil.