What are some bands similiar to avenged sevenfold and three days grace?
Breaking Benjamin, Papa Roach, Skillet, Three Doors Down.
A Day to Remember, Of Mice and Men
Billy Talent, not sure its similar in what you'd think but it's just an awesome band :)
I think that mudvayne would be something you like :) especially on their new self titled album
From First to Last, Red, and what the other dudes said!:)