Is he the riffrepeater dude on YouTube? 3 Days Grace I hear sometimes on one of the radio stations I listen to. I used my Music ID phone to identify them, they do sound similar to a lot of groups, so I guess that makes them rather formulatic and over produced sounding.
Never bought them on i-tunes, but two of there songs have crunchy catchy power chords that don't sound overly complex and might be fun for me to practice with.