Being some one who is also heading to uni to do a creative course and who has extensive experience using both macs and pcs for various creative projects (graphics work, animation, illustration, photomanip, webdesign etc)
I can whole heartily say, there is no difference either are equally suitable and any claims about needing a mac for design work is purely pretence. You're paying to have them double as a fashion accessory. Much like skullcandy headphones or alienware gaming pcs
I like macs but will continue to use pcs until macs stop being so ridiculously over priced.
That being said raven, i'm sure your daughter has her heart set on a mac book so if this info is actually any use i dont know.