Obviously CC vs Hunt is the first thing that springs to mind, and lil nog on shogun.
Then pretty much the entire Hendo/Shogun fight. Hendo must have nailed Shogun with the H-Bomb about 3 times during that fight. Also, Shogun landed a HUGE uppercut on Hendo that you could see made him see stars. How Hendo did not crumple from that uppercut I will never know.