Can you judge the caliber of a person based on who they call their friends?

I heard someone say once that you can tell a lot about a person by their friends. If their friends are good people, in turn they are as well.

I have the best friends in the world. All of them. I don’t know what I did to deserve this… but they are better than me in every aspect. (Some of them are fellow jellies, guys, don’t let this go to your heads)

I don’t consider myself a great person. I am an ass, and self centered. But, to my friends, I am a different kind of ass. Everything is said lightly, lots of sarcasm, and a lot of jokes.

Can you judge a person by their friends?