the most proud of is vs i'm most proud of is

Some examples from the web:

• The thing I'm probably the most proud of you for is...
• And one of the things I'm most proud of is this agreement for IBM.
• But the thing we're most proud of is that our fruit is 100% insecticide free.
• One I am most proud of.
• This is the most proud you've ever made me, but I'm also disappointed in you.
• Why don't we just skip to the things that you've done that you're the most proud of;
• This is the one I'm most proud of.
• The nonprofit work we've done in South America is the work I'm most proud of.
• To kick things off, let's all go around the room and say one academic achievement we are most proud of this year.
• Late Mr. James was most proud of five origilan masterpieces in this room.
• The thing I'm most proud of in this world is being her mother.
• You're what he's most proud of.
• You're what he's most proud of.
• It's the thing about my life I'm most proud of.
• Earlier today when people were congratulating me about my accomplishments, I was thinking that the thing that I'm most proud of is you.
• It's one of the things I'm most proud of having done in my life.
• It's one of the things I'm most proud of.
• It's one of the things I'm most proud of.
• But what I'm most proud of is my son, Sherman.
• One of the things I'm most proud of, Sarah, is my independence.

Some examples from the web:

• Earlier today when people were congratulating me about my accomplishments, I was thinking that the thing that I'm most proud of is you.
• But what I'm most proud of is my son, Sherman.
• And one of the things I'm most proud of is this agreement for IBM.
• What I'm most proud of is the work I did on those legs.
• The thing I'm most proud of in this world is being her mother.
• One of the things I'm most proud of, Sarah, is my independence.
• This is the one I'm most proud of.
• The nonprofit work we've done in South America is the work I'm most proud of.
• It's the thing about my life I'm most proud of.
• It's one of the things I'm most proud of having done in my life.
• It's one of the things I'm most proud of.
• It's one of the things I'm most proud of.
• This is the place I'm most proud of right here.
• To have you as my disciple is the thing in my life I'm most proud of.
• I've given birth to two kids and a block party, and guess which one I'm most proud of.
• And I think that's one of the main things that I'm most proud of about Anonymous.
• I'm most proud for us to be seen together.
• Here's Bhumika: BS: What I'm most proud of?
• But I think I'm most proud that you've become a brother to Kurt.
• 'The thing I'm most proud about is the peer-worker programme.'