My brother has left it up to me to pick which park we go to. We have both been to Great American, but haven't been to the one in St. Louis. The Six Flags in Eureka, MO is farther than the one in the Gurnee, but the freeway around Gurnee is undergoing construction so time would likely even out. Which one would be the best bet? Also, what day would be the best to go?
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