and I love the story feel of Ravos and Reyhan working together keeping the Abzan stubbornly alive. It suits the Abzan so well!
Saskia, the Unyielding and Atraxa, Praetor's Voice also have the Abzan colour identity, and Atraxa could work well -- she proliferates and gives access to Blue, and thus a lot of Simic cards.
Hmm, the UW partner is just the opponent-only managorger...
Doran is probably better. Flying is good for an alpha strike, and life is nice, but only if you're also doing damage. And w/o doran, you're reliant on Assault Formation