ONYXIA PVP Protection Few Question/Opinion

Hi Everyone.
I have few question about warrior prot in pvp.
Someone playing like this? What You think? Ay tips.
I heard that have problem with spell defense, so i got an idea....
I think about putting all res gems, and enchants, that will give 32 from gems, and 19 from enchants, 25 from dudu buff.
Thats make 76 all res. Worth? Would I be really hard to kill?

Anyway what You think about deep thunder 2h mace with chane to stun effect? Its working in pvp? ANy opinion?

There is only one viable PvP spec in TBC and that's Arms. Deep Thunder is currently BiS weapon for it.

Prot hits like a wet noodle in TBC and the additional survivability won't help you because opponents will just ignore you and attack another target.
Pwarr might be decent as a Flag carrier but even for that purpose I'd rather pick druide because of it's mobility.