I've worked at both the "BigCo's" (including Google) and "cool new" startups. In summary, it is almost pointless to compare working at big companies and startup

I've worked at both the "BigCo's" (including Google) and "cool new" startups. In summary, it is almost pointless to compare working at big companies and startups. The variance within both groups is much larger than the differences between the groups. There are pretty good, and very boring big companies. There are amazing, and hugely terrible startups. To find something that you will enjoy you have to evaluate each opportunity separately based on your preferences, not choose a company size first. All these "important factors" are as much of a marketing tagline as they are an actual benefit. In some startups they might be the case. Probably yes if you are employee number 1-2 but not 10-20, let alone 100-200. But in comparison to some other startups a big company may deliver more value for all of them.