I prefer traditional bottles, especially for mamas with small hands, as mamas with small hands might not be able to hold firmly on fat bottles.
for plastic bottles, u must be very careful to buy PPSU as PPSU is safe to babies.
I think glass is better comparing with plastic bottles, more durable and safe although people think that it's dangerous if glass bottles can be broken easily.
I use Chu Chu bottles for both PPSU and glass bottles.