I tend to think about when they are older and apply for jobs.
If you were an employer and a resume came across your desk for 'Buzz' would you take it seriously or would you think what most of the people on here have said - Buzz Lightyear from Toy Story...or the character from Home Alone, and think it's slightly weird for a name?
Don't get me wrong, I prefer different names to normal mainstream names but Buzz is next level. Of course, it's completely up to you.
For every person who doesn't like my son's name, there is a person who loves it but at the end of the day I'm the one who has to call him that for the next however many years so I didn't really take anyone else's opinions into account. Do what you want to do.