What do you think about a person who is their own favorite person?

In the words of RuPaul, " if you don't love yourself, then how the hell are you going to love someone else?"

Tones of narcissistic tendencies but having said that we do need to love ourselves the most.
Depends on what other traits they have.

It’s either they are incredibly self sufficient or very self absorbed 😅

There is a phrase I've heard "self praise is no recommendation".

A healthy confidence in yourself is a necessity if you ever want to accomplish anything in life. Everyone is looking at the world from their own perspective. Everyone is selfish and narcissistic to a certain degree,some are more than others.

I knew someone who had an invisible friend that everyone liked more than him.

[c=#BF0080] A perason with VERY high self esteem![/c]

'Charity begins at home'!