For bottle feed baby, what type of bottle do you prefer to use and why? (Glass or BPA plastic bottle)

My baby is fully breastfed, but as I'll be going to work soon, so I actually had a very hard time getting her to use a bottle. She refused all the brands and only took MAM. I suspect it's because MAM has a flatter teat. MAM only produces plastic BPA-free bottles. I actually prefer them over glass bottles because it's a lot lighter and it won't hurt as much if the bottle falls on the baby. Also, milk is not supposed to be at a boiling temperature so I'm not too worried about chemicals from the plastic leeching into the milk.