Okay, I've been playing on Expert for a while now, on suggestion of this here thread. Was about to get bitchy - no usable legendary items in all of Act III and IV (two 2-handed swords, but for a Wizard....and since they both have big + INT bonuses, they're useless for if I want to try another character. Oh well).
I just defeated Diablo. She dropped 3 legendaries and 4 Rares. I'm now wearing 6 of those 7 items. Damn
(also, some of the new legendaries are fun to play with and/or ridiculously powerful. Magic Missile has 2 extra missiles isn't huge if you're already using the 3-shots rune...But now I'm casting 3*240% weapon damage, piercing, in a wide line in front of me, for free. Those Reapers go down like flies.)