I think it depends on who can get it going first. If DHC lands early and hard, then we know that Oliveira doesn't take shots the best, so in that scenario I would take Choi by TKO. On the other hand, if Oliveira immediately gets him down like Tavares did, then Oliveira by choke is pretty much just a matter of time.
As things are right now, I would take Oliveira by guillotine.