All of the choices seem defensible, but I can't imagine playing G/W Hate Bears without
Aether Vial and
Noble Hierarch. I'm not actually a huge fan of
Restoration Angel in these decks, but Noble Hierarch's mana boost makes the Angel much more playable. If you're on the blink plan, I think
Eldrazi Displacer may be a more desirable choice, as it's just quicker to the board.
Kitchen Finks is also kind of a no-brainer in deck that can blink its creatures.
Thalia, Heretic Cathar is a card that has really impressed me, which I've played in mono white Death and Taxes, but is potentially even more powerful in the GW version if you're playing Noble Hierarch to play it turn 2. I'm not in love with
Voice of Resurgence in this deck, as it's just a really good bear, but not particularly hateful. I think the "play on your own turn" clause of Voice is sort of mitigated if you're playing
Aether Vial. Lastly, as sort of lackluster as it is, I think that
Scavenging Ooze deserves 1-2 maindeck slots, as there are so many decks that utilize their gaveyard for some value. Scooze allows you to fight Delirium from the Death's Shadow deck and keep their
Tarmogoyfs in check, it can mitigate the effectiveness of
Snapcaster Mage, and it's an answer to the Abzan Company recursion combos.