Sippy Cups?

I have a 13 month old, and she's still on a bottle regularly for her milk. She'll drink water out of a sippy cup, but barely. 😕 I have a nuby sippy, and she doesn't like the spout (it's silicone just like her bottle.) She'll only drink her milk out of a bottle. I'm having troubles finding the right one, since they all have the same shape. 😩 anyone else go through this & find a good sippy cup that they liked? we also have to start brushing her teeth cos she gets major morning breath lol.