What is the function of "one of my favourite xxx"?

When people say "XXX is one of my favourite restaurants", what do they want to express? Why they don't just say "I like XXX"?

You usually use the phrase 'one of my' when you have multiple favorites.

For example:

Assume I like 3 restaurants namely: Restaurant A, Restaurant B, Restaurant C.

Now, I can say that Restaurant B is one of my favorite restaurants.

This means that I definitely like restaurant B, but there are other restaurants apart from Restaurant B that I like.

And when I say 'I like Restaurant A', it can mean that I like Restaurant A and here I'm not taking about any other Restaurant.

I hope this helps!

When people say "XXX is one of my favourite restaurants", what do they want to express? Why they don't just say "I like XXX"?

Here is an example:

• My favourite restaurant in Paris is AAAA. My favourite restaurant in London is BBBB. My favourite restaurant in New York is CCCC.

• So you have three favourite restaurants?

• Yes I do and BBBB is one of them.