All that matters is that both parties are happy, but I know which side I would prefer by a landslide. (the side to the right of 'for')
Is RARE Dos the one that might be infected? Might want to check that out. Real-World Wise: see the two answers above, if everybody's happy, it's good. Rarity Wise: whoever gets the Toppling Goliath is winning, but it's not terribly lopsided. Taste Wise: whoever gets the Toppling Goliath is winning by a fair amount. I would never trade a Kentucky Brunch (of which I have none) just because it was one of four perfect beers I've ever had, but the other set of beers are no slouches. Good luck.
I don't think you understand this whole trading thing. People in here are mocking your question as much as anything. If you like the beers you are getting, and you're happy to give up the beers you are giving up, then what is the problem? What's your worst case scenario here? You missed out on maximizing your mythical bottle value by 15%? Who cares... You're getting 3 excellent rare beers for 2 excellent rare beers. It's not like you're trading a pair of limited releases for a 6-pack of Sierra Nevada here. And putting the Rare DOS infection aside, I still think this would actually be a very nice deal for you. Everybody will have their opinions, but I don't think anyone would disagree that there's nothing wrong with this deal.
You're that guy nobody wants in their fantasy football league aren't you? For clarifications sake, I would like to be on the receiving end of either of those boxes.
I think the side on the right is definitely "winning". I recently completed a trade for KBBS and Assassin, gave up Cherry Rye, DL'13, Genealogy of Morals, Madness and Civilization 1, and Parabola for them. I am very happy with both sides, and I am sure he will be with the extras I sent along as well.