I obviously love my INFP.
But, I was just thinking about his sister - who tested as an ENFP. She kind of drives me nuts. She's almost spastic sometimes with her goofiness. She talks over the top of people and ALWAYS needs to be the center of attention. She holds grudges against people and makes judgements about people that are WAY out there, based on what she perceives. She is extremely controlling too. I think that she is immature, but how much of that is her personality?
It's only one letter difference, why does it seem like an ocean between the two?
Well, and you should keep in my mind that I'm an ISFJ as well, I suppose. I suppose I have a flaw or two...