Selena or demi or miley or mandy?

Well,I also like both,but mandy is like putting a pretty bad influence on miley,with mandys past influences.Selena and demi start the webshow on youtube,and mandys ideas were to rip the show off,by copying wat selena and demis idea was,to make a webshow.I like mandy and miley too,just think their friendship was wrong.