Party culture exists at every college. Some will be more than others, but it's all about what you want to do. Guarantee you if you don't want to partake you will find a group of likeminded folks at either school.

Not to stress you out OP but think about what you want to do with a biochem degree post undergrad and talk to profs about where their students go. Some schools treat programs more generally, others will be more focused on producing students that want to go do a masters/PhD, or some will have a really strong pipeline to different companies post grad. Consider what you think you want to do and use that to help guide you.