Hello! I tried all of the same ones you mentioned, and the Born Free is the biggest hit with DS (it is not spill proof though - we never had luck with spill proof ones, he had to work too hard!
). But TBH, he did not get the point of a sippy until about 9-10months, no matter what I tried. I think it takes awhile for them to figure it out. Up until then he chewed on it as well. I'm guessing your LO just isn't ready.
I asked the same question about the juice too. Overall though, I don't think it makes it more appealing, and juice is really best left out of your LOs cups. It's probably not something you want to go introducing prematurely, lots of sugar! I doubt it would make a difference in making her drink more.
I never tried the straw ones so no help there.
Have you tried letting her drink out of a regular cup, preferably plastic? Obviously you couldn't just let her have it, but you could hold it for her and I'll bet she'll take more fluids that way. DS would drink out of a regular cup long before he would a sippy, so if you just want her to get more fluids in then offer water at mealtimes out of your cup and see how she does.
I wouldn't worry about her not drinking out of the sippy yet, it's still early. Keep trying everyday, she will get it soon enough!
I'm in Canada too btw! HTH