I'm not gonna lie. As a Paladin, it's one of the most distinctive parts of my tanking kit and with the cross-class system going away in 4.0, I'm really gonna miss it.

Yes, I know it's suboptimal for tanking purposes, but the extra mitigation it provides can really be handy in a pinch (especially in advance of a tankbuster). I know a lot of people don't use it or take it, but I do from time to time and I love it.