There is no such thing as "aggro stax". Either you're a stompy deck, or you're a stax deck. Trying to do both is a mistake.

If this is an aggro deck, I would ditch Crucible and Chalice. I don't see any reason to run Exalted Angel over Baneslayer, your stated reason doesn't makes sense- generating one more colorless mana isn't the deck's problem, generating WW is, and you have to do that for either creature. Apart from that Exalted sucks and eats up two turns, Baneslayer rocks and doesn't.

I don't see why Linvala is in, either. Comes down way too late to matter vs most of Survival's creatures that it affects (Hierarch, Mongrel, Aquamoeba). Completely useless vs everything else.

Mindcensor, Leonin Arbiter, Baneslayer, Glowrider and maybe Stoneforge Mystic are all good possibilities. Running equipment is great in a deck like this esp. with Mystic.