The first that comes to mind is CM Punk Vs Randy Orton in 2011. This had so much potential but was a letdown imo. The matches were solid but the fact that Orton won both times they faced off wasnt necessary. The storyline also could've been better than it was. Orton just took apart Nexus singlehandedly. Another one that comes to mind is CM Punk Vs Daniel Bryan in 2012. It really seemed like their feud just came and went. I can't even recall anything major that happened. But yeah what are yours?