bottle or breast which is best?

The arguments on what is best for baby can go on for days or weeks or months. I must admit, my 2 boys I bottle fed, and they thrived and are of sound mind.....?? :)
Gracie, I expressed milk and bottle fed it to her for 6 months. She did well, she thrived.
Harlow I breastfed, I am still breastfeeding, she is 8 months old now. I keep thinking I need to bottle feed her formula now, as that is what people are telling me, and what I keep telling myself... will it make her sleep through the night?? I know I sound totally stupid, I know I do, but...... could it have some truth to it?
Anyhow that is what is on my mind right now......