My warrior is my main and 99% of the time I just dps. I find the thing that stops me from tanking more often is protections lack of any real viable self heal option, compared to the other tanking options particularly. I've tanked casually on everything at max. level in the last 12-18 months (besides guardian druid which is stuck on 81), and everytime I respec to prot for some tanking time I find myself missing the self heal that seems available to everyone else. Looks like blizz may be experimenting with something with the 15 set bonus and hopefully they make something similar standard. Like every class we have the 'self heal' tier to choose from, but unlike other classes we don't seem to have additional options on top of that.
What do other people think? Do prot warriors lack a decent self heal option? Would something like that make warrior tanking a more attractive proposition for you?