How much does “competition-level” gyms matter? Does it outweigh the atmosphere for you?

Im currently deciding between training at gym A, which is one of the best in the country in terms of competition, with the atmosphere being okay, and gym B, also great in competition but not as big (although it opened just 2 years ago and it's already one of the best in the comp scene where I live), however I feel super comfortable in the latter. They are both super close to each other so idk what to do.