I hate feeling compared to someone else, too.
I empathize.
In my humble humble opinion, I feel that this person was not very tactful about relating this stuff about that former employee. I wish he did not gush over her in front of you. That's gross.
You are no better or worse than anyone else and you probably do just fine. Everyone does a job in their own way. She did it the way she did it and you do it the way you do it.
But oh he was not very tactful. I know that made you feel bad. Sorry.
That's like when my roommate says, "I like cats better than people". I can empathize with what he feels, but still, I am "people" to him. That hurts.
Carol