J.F.
Every. Single. Time. :)
The 4 year old says it with such love, I could just scoop her up and hold her forever.
My favorite lately is when the 19 month old has said it to me. She has done it two times. Once when I was changing her. She grabbed my arm, pulled it close to her with a big hug, kissed it and said, "Uv OO." Two days ago she grabbed my leg in a giant hug and said, "I Uv OO!"
MMMMM, MMMMMM, MMMMMM. The best part of being a mommy!