I found that at 360 girls will persuade you to take shower before and after, which for me is a waste of 5-10 minutes. Ofc you could always say NO as long as you come fresh and cleaned.
Also more popular girls OR those who want to work longer shift tend to get rostered more at 360, which make sense because 360 has more rooms and they probably want to promote their newer shop.
Price wise, only $10-$20 difference depending on duration.