Would suggest Switzerland will beat Sweden, however Croatia have a pretty good chance from the bottom half of the draw, there's no team there they should fear. Lacking a real top drawer striker, but Modric and Rakitic are two of the very best midfielders around.
So Colombia, then prob Sweden, then Spain/Croatia - that's doable. God knows who'll get through on the other side - very tough to call.
(Obvs lose to Colombia in reality, probably extra time).