FYI Battle Focus increases your defense by 35% to all damage types, you can check your defense breakdown to verify. This shoots your defense chance up to around 46% for elemental/internal damage which is nothing to scoff at for damage types that your defense stat doesn't help with. Right Price was no doubt the call for VG/PT tanks until last week when the set got a huge nerf to its CDR (12 seconds max, where you could knock a minute off before in the right situations). Now only the new Emergency Power set does anything noteworthy for your tankiness.
The tacticals are all boring, though, agreed.