Idea on changing tank damage calculations

[xvshanevx]

Just a Sunday morning think tank...

I looked back at some of my old gear and new and compared the STR to VIT differences between some ARR, HW, and SB tanking gear. One trend I noticed was that the higher our ilvl, the closer of the gap between STR and VIT gets.

For example, the High Allagan Coat of Fending (i110) the difference between STR and VIT was about 19%, for the Diabolic Mail (i260) was about 10%, and Augmented Lost Allagan Coat (i340) is about 5% difference. If the current trend follows, the percent difference between STR and VIT come ~4.5ish will be about 1-2% difference.

With this in mind, I was wondering why tanks have STR on their gear at all? I understand that our damage calculations are based off of STR and AP (which is directly affected by STR), but do they have to be? If it is possible to rework tank damage calculations and base them off of VIT, which I believe is possible with their current engine, then why not just have tanks calculations and AP scale off of VIT? As it stands, in a few patches, at least for tanks, the gap between the 2 stats will almost be identical (there will always be a small variance).

So, an idea I had was that they could make Primary Stats and VIT scale 1:1 on gear, for all gear. Have tanks scale AP off of VIT, and Tanks would also have a passive that would increase their VIT based off of gear by 5%.

Well, that passive would also make tanks 5% stronger than they should be! Well, yes, fights can also keep this in mind, but they could also change our damage calculations to something akin to: (Damage Calculation) - (Damage Calculation * 0.05), this way our damage would never actually scale off of that passive.

Anyways, just a random thought. What you guys think? I am pretty sure I am missing some critical info.