This makes jumping around like a mad man all worth it. I love this tank build, I can hold aggro in PVE easily and get tons of protection medals in PVP. Add in a pocket healer, this is simply amazing. There's even a few youtube videos on this build, I believe.
Hybrid 18/23/0 Tank Build
The chance of having Guardian Leap apply to yourself as well as your target is worth it in PVP, especially in those hectic zerg clashes. Keeping yourself alive allows you to keep more people alive, and helps you flee even better if need be!