I guess the best place to start is with the best root beer known to man: IBC.
IBC stands for Independent Breweries Company, and was founded in 1919 in St. Louis. This is the standard for all the rest of the root beers i will review. Nothing can ever match up to the amazing caliber of IBC. Therefore, other root beers can only hope to be as close to awesome as IBC is. You will see that my rating system is 0 to 10 IBCs. IBC is, of course, a perfect 10, and the only perfect 10 you will see on this site. As mentioned before, others may come close, but will never achieve the same score.
IBC makes several different flavors of sodas. They are all good, but the root beer is certainly their flagship drink. It's amazing. The others merely pay homage to this incredible and historic masterpiece. If i was asked to describe the taste of it i would have to say it tastes like God's love.
Everything about this root beer is manly, although it is appropriate for girls to drink it too. I mean, just look at the bottle... the label is printed right into the glass. That's because in the old days, men used to heat the bottles up after they drank them and brand themselves with the scalding hot bottle. It was a true sign of pride and privilege. (Don't worry about checking my facts. Trust me, this one is true). It has a deep, rich taste, just the right amount of carbonation, and every bottle comes with a delicious and satisfying feeling of supporting the best beverage on the planet.
IBC and Chuck Norris actually share a common characteristic... both are known to cure cancer, though IBC must be ingested and Chuck Norris needs only look at you. Still, it's worth mentioning.
At one time the company produced and sold 32 oz. bottles, but they are near impossible to find now. If you happen to stumble upon one, buy it immediately. One day in the not so far future, IBC bottles will be used as international currency (it won't matter if root beer is in it, so feel free to drink it now), and 32 oz. bottles are like hitting the jackpot. You're welcome for that little tip.
I really can't say enough about this amazing drink. It's refreshing, sweet, satisfying, compliments any meal, perfect for root beer floats, dressing wounds, baby formula, and so on and so forth. The fastidious attention to detail IBC puts into every bottle of this sweet nectar leaves no room for error. Simply stated, it's the best, and you should count yourself fortunate for the opportunity to enjoy this miracle drink on a regular basis.