There are a ton of lists on the Internet. They always create controversy. Honestly, that's why there are a lot of lists on the Internet.
The people at Watch Mojo have created a three part list involving the top guitar riffs of all time. You'll probably disagree with some or a lot of them. The three categories are "Top Metal Riffs," "Top Hard Rock Riffs" and "Top Classic Rock Riffs."
Give the videos a watch and tell us why they're wrong.