This is incorrect.Sorry to break it to you, but Direct Hit is only good if your raiding
Hit gives you a % chance to deal 25% extra damage and can work in conjunction with a critical hit (a direct Crit). It is the best stat for non-warrior tanks in the .0 patches, is generally on par with crit in .2, and will likely be overttaken by crit in the .4 patch.
Warriors just always want crit.
This is incorrect.200 Tenacity = 1% damage increase, 1% damage mitigation
Stat value intervals are re-figured every expansion, because exponential stat increases per ilvl will horrifically break things eventually. (WoW recently faced this because back in beta they went with 'More stats per ilvl is better, over the strong objection of the playtesters).
The current number is 33 per .1%
This is incorrect.If you don't raid: Tenacity + Skillspeed/Crit/Det
Your priority is skillspeed to the right GCD (can you get a 2nd goring blade every fight or flight window? Can you get a 5th Fell cleave inside your IR? Thats where you stop).
Then its hit or crit depending on class or era. Then det.
Note, it CAN be in your interest to MELD for Tenacity, IF (and only if) you're overmelding. If 20 tenacity takes you to or just past a breakpoint, it will be a better investment than 20 of a non-crit-in-its-sweet-spot stat.
This is incorrect.4% of defence mitigation bonus will have more impact on the team
4% mitigation from tenacity is worth, currently, in 450/460 gear... 4.8k eHP.
Tenacity is a really bad stat :|
Self and outgoing healing. Not incoming healing.4% on mitigation alone, and another 4% on healing bonus
Back to Direct Hit VS Tenacity:
If a tank melded blablabla
https://ffxiv.ariyala.com/19Y02 <- Here's your tenacity best in slot.
https://ffxiv.ariyala.com/19Y0K <- Heres your non tenacity best using the same ilvl.
The tenacity build gains: 5.6% mitigation.
The avoid tenacity build gains: 3.6% damage, .8% crit and crit damage.
If you think getting less than 6% eHP is worth ~4.5% damage, I dunno what to tell you, but its not.