Tommee Tippee Back to Nature V Dr Browns Bottles!

Hi Girls! Just wondering......does anyone have any experience with these two types of bottles? The Midwife in the hospital said that the 'Back to Nature' are brilliant from birth to help prevent colic and that the Dr Browns ones are good if the baby has already developed colic. (she said that was her experience with her own babies, not scientifically proven!)......any advice? Or what other bottles do you all recommend?

i used tt my sis used dr brown - neither baby had colic!!