Valuation methods for early-stage startups

I posted it in r/venturecapital but wanted to hear the thoughts of the people here too.I met a lot of startup teams who estimate their valuation for funding round taking a shot in the dark. Some of them calculate their own capital they invested up to date (or pre-seed capital raised from angels) and just multiply it by xx to "prove" the current valuation.Some take the numbers from the financial forecast and use the multiplication method, without caring that it is not suitable for the pre-revenue stage.Others simply look at more advanced competitors and take their valuation as a blueprint.There are many more variations, but in reality, the majority of early-stage VCs I know use the combination of 5 most widely used methods:Venture CapitalScorecardBerkusRisk summationComparablesAll five in detail are described here, and then investors also amend the final valuation according to industry ratio or COVID discount nowadays.I never met professional investors who use only one of the described methodologies in the valuation process. But recently I got into arguments with an angel investor who claimed that he uses only the Berkus method for startups assessment and that's completely enough.I want to ask the community of investors here: what method of early'stage (pre-revenue) startup valuation do you use while assessing investment opportunities? see hubwealthy.com/wealthy