I used Evenflo classic glass bottles for my daughter's daycare (pumped breastmilk).
I had started out on Avent plastic bottles, but she hated the nipples and I had a tough time getting the bottles clean in our crappy dishwasher.
The evenflo bottles were cheap (5.99 for a 3 pack), fit the only nipples my daughter would take (Gerber NUK) and had no other parts involved (no valves etc.). They were easy to clean in the dishwasher and by hand.
The glass is quite sturdy and only one ever broke on us, when it fell on the concrete floor at daycare.
They also fit the Medela pump, so I could pump directly into them them (not sure if that's a consideration in your case).
They don't look as stylish as the newfangled glass bottles, but I can only recommend them.
Good luck.