I have the evenflo ones that have a silicone sleeve that goes over them. I haven't used them yet (due April). I decided on those because they are inexpensive and since I'm breastfeeding the majority of the time I didn't want to spend a ton of money on them knowing they won't be used much. I didn't want plastic because I feel like they don't clean as well as glass. I feel like the plastic holds onto things (bacteria and odors).
On a side note I was trying to find a bottle drying rack that worked well with the glass bottles because of their weight. I didn't find any that have arms that extend from them that we're strong enough to hold the weight if the glass. However, there's one that looks like grass (I think it's boon but it's been awhile since I've looked at it.) that had the best reviews on amazon.