When is better to buy crypto, on pre sale or on ICO? When you buy on presale, you can get good bonuses, however when you buy on ICO you have a better gurantee not to be scammed.
Pre-sale is the best choice because the price is cheaper to purchase and the bonus token is huge. Your right, ICO will reduce the risk but if you will review well the projects and the team members then the risk of being scam will be avoided too so better buy token during the pre-sale and go for the bonus.