How do you choose a disc when there are so many brands, models, plastics, and types of discs?
The below video can help with choosing which disc you should buy. It is intended for beginners, but most players can benefit from watching it.
So now that you know not to trust the numbers, here is a chart of...the numbers. It compares multiple brands and has a base rating system so you aren't struggling with each brand's unique number set. Beginners should only pay attention to the PWR, and maybe the HSS, but more advanced players can benefit from the RNG and LSS.