Argentina and Brazil do look like it would be great betting, looks like odds are like that because they just assume they are not going to really show their best and not care, because normally these teams are much better. What we need to achieve here is to make sure we can definitely get the wins, and separate looks better.
Because even if you lose one, then you will be in profit. Parlay could be even better because of the return but if one gets a tie or a loss, then both are gone. That is why, since bot hare above the double threshold, I would highly suggest getting just one per bet and that way if one of them fails then you are going to get the return you want anyway and wouldn't be caring about the other.