[FGO] Is it more worthwhile to grail higher or lower star Servants?

I have 11 grails, and Tristan and Rama are on their way to the max limits

a lot of people say GRAIL FOR LOVE and that's my philosophy too mostly, but strictly practically speaking, I would mostly recommend grailing 3 star and 4 star servants

SSRs are generally strong enough without grailing, and 1 and 2 star servants are still going to be weaker even if grailed to 100. That said, I know plenty of people who have a bronze grailed to 100 and if you really love that Servant and use them a lot you should go for it

I tend to use all my grails on my favorite SRs. but I do also have Cu and Sanson grailed (but then again I never use Sanson anymore, so that's one grail I'm not getting back, basically)

(Cu was definitely worth it tho)

sometimes tho you just wanna grail your fave to show off to your friends how much you love them lol

I'm considering grailing Asterios because he's a decent support Berserker so long as he fires off that NP

HE'S A GOOD CHOICE. a good boy