What songs would should we learn?

Me and my friends jam together, we have a few covers and a few originals. We need to know what to cover next, we already know Master of Puppets (except Kirk's solo), For whom the bell tolls, Am I Evil?, Paranoid and Gone forever by Three days grace. Some bands we're into are: The Sword, Metallica, Black Sabbath, Megadeth, Three Days Grace, heavy stuff, but not the screamo ****. What songs would you suggest we cover next? If you could provide tabs for guitar that would be nice as well:)