To be honest, the whole deconstructing the horror film angle felt trite, obvious and contrived to me before the first movie was even over, especially since it is ground Craven has trodden before.
The second was more of the same, I didn't bother with the 3rd and probably won't bother with this.
Scream 3 was probably my favorite...but not because it was technically better than the original or Scream 2...just like seeing Jenny McCarthy & Parker Posey in it.
And the original was better than 2...but I didn't have any problems with 2...I enjoyed all 3. I am hoping this 4th one will be as entertaining.