Best sippy cup for little guy who won't take any?!?

So my little guy is a little over 11 months old, and I've been trying since he was about 5 months (just slowly introducing water in sippy) and no avail. It probably don't help that he hates any flavor of juice even if it is diluted, and hates water. I've tried a few brands, plus the take and toss ones my toddler uses that has no valves and figured if the liquid in the sippy just trickled in his mouth he'd get the idea...yeah right!! he just chews on the spout! So just wondering if there is any sippys out there that mimic a bottle nipple somewhat? He is used to the larger bottle nipples like the ones found on playtex ventaire wide neck bottles, and born-free bottles.