Bottles

My baby will be exclusively bottle and formula fed, do to the fact that I do not make any milk. I want to know what all you mommies prefer or what you have experienced. Since he/she will only be bottle fed, I want to get the best bottle out there to make it easier on both the baby and myself. I know the baby will pick what one he/she likes best but I just want to know your opinion/experience. Please don’t bash me on breast feeding is best because I can not physically help it and is already hard enough. So far I have been really looking into avent, dr Browns, and smilo bottles.