Haven't had a chance to play too much post-patch due to the server overload causing Ping to shoot up at random; but the games I've had so far I've been a bit overwhelmed at the item choices. Using Leona as an example it used to feel rather straight forward. Rush Randuins/Frozen for AD heavy or Abyssal for AP heavy with either Sunfire or BFT mixed into the build for damage. Now...I don't know even where to begin. @_@ Are there any particular items people are leaning towards for 'must start' for tanks so far?

Also when should tanks go for Tier 3 Boots? I usually pressed for T2 after completing my first item; T3 I have no idea when I should focus on.

Well... since the changes just went live today, my advice would be to experiment and find out what works. Most players haven't really had a chance to absorb the changes.

The upgraded Aegis of the Legion sounds pretty good.

Build health and damage.

Itemize glass because at least you do more damage before dying! Hue.

Thornmail is the only armor item worth getting now. At least return some damage before dying.

^ this. Armor and MR has lost its effectiveness greatly.

stack black cleavers

Armor and MR effectiveness has diminished. Stop buying it.

Nope, not seeing the logic there.

While mountain climbing, the effectiveness of air diminishes due to lower oxygen levels. Better stop breathing! /sarcasm

Armor and MR should still be purchased... but you better back it up with a sum of HP.

In other words, you may actually have to invest in tankiness to be tanky and sacrifice damage.