WWE One Stand Stand Extreme Rules was in fact one of the best PPV's from the year 2008, their are so many good extreme matches that are worth mentioning.
Shawn Michaels vs Batista in a stretcher match was the match favourite for me as Batista took the opportunity to hurt Shawn Michaels, due to HBK lying about the injury he suffered at Backlash. The second last man standing match between Randy Orton and Triple H for the WWE championship was a decent match where both superstars were punishing each other, by not only using moves, but weapons as well, the only downside to this match was that Orton suffered a broken collar bone, which led him to not being able to perform much. The TLC match between The Undertaker and Edge for the World Heavyweight Championship was an awesome match and it was good to see the Undertaker perform in a match like this, just shame that he lost the match, due to some interference which then led the Undertaker to lose and leave the WWE for good.
A must watch WWE PPV for you all you fans who like a bit of extreme involved in your wrestling.