You might want to read this.
Expertise is always better than Hit - Warriors - TankingTips.com
So, I'm about to pick up Headplate of the Honorbound - Item - World of Warcraft to replace Helm of the Crestfallen Challenger - Item - World of Warcraft
The nice thing about the upgrade is the 69 Expertise rating, which (to my knowledge) should put me above the Expertise soft cap with the Orc +5 Expertise racial. However, I will drop down to 228 Hit rating (6.95%) which is under the soft cap. I'm wondering if I'm better off becoming Expertise capped and sacrificing the Hit (as I've heard Expertise>Hit). If I wanted to be both Hit/Expertise soft capped I would have to gem for Hit which I've tired to avoid doing.
Any advice on how I should go about this would be appreciated.
You're better off softcapping expertise than having any hit at all. The only thing you need to worry about hit for is taunt-sensitive fights, for which case you have vigilance for the other tank, as well as glyph of taunt. No need for any hit anywhere at all. It's nice to have, sure, more attacks landing is always better, but if your threat is just bad, it has nothing to do with your threat stats in your gear at all.
Expertise always, unless you're a pally iirc. They don't need as much
As squirrelnut said, you rarely miss taunts and really only need hit for heroic boss taunting if you don't want to spare the glyph like me.