End Game Loot, Lootboxes, Update 23, and Beyond

[Siddharta]

What I'm hearing is that 2 weeks after the raid comes out, everyone will be standing around in T2 raid gear they got from opening lootboxes. But don't worry, the T3 raid gear, which is 2 item levels higher and gives another +8 vitality, will be locked behind the raid, so everything is hunky dunky. Meh.

This is what i want to ask too.
How much ilvl difference between lootbox and instance gear affects character stats? From what I saw, the difference between lootbox gear and t2 gear for example is not that noticeable.
So i can use ilvl 370 gear and still have ~the same stats as players who run t2 or t3.

I mean when you say 'Best in Slot gear' , there must be something more than +30 stat, idk maybe some noticeable scaling class bonuses or scaling % of damage\inc healing\outgoing healing\bpe\damage reduction etc.