at least kristen stewart is better at acting than harry potter
but that still doesn't excuse the shittiness that is twilight 
Are we really going to have this argument? Seriously? Are we really going to say that Twilight has better acting than Harry Potter.
The most recent HP movie had in its cast:
-Michael Gambon
-Jim Broadbent
-Helena Bonham Carter
-Robbie Coltrane
-Alan "Hans" Rickman
-Maggie Smith
-Robbie Coltrane
The supporting cast of the Twilight series contains two 24 villains. Granted, one of them is Nina, but the other guy was the villain in the shitty Season Two subplot featuring daughter in distress Kim Bauer.
Oh, and if there is any doubt left, watch the Potter movies and the Twilight movies and compare. The three kids in the HP franchise (well, at least two of them) actually can fucking act, especially in the later films. I'm pretty sure that the cast of Buffy the Vampire Slayer could outact the Twilight crew.