DD2 is 12.5 mo and I use the Playtex straw sippy cup that MadisonC mentioned above. Sippy cups are a very kid specific thing, and sometimes you need to experiment. You may want to consider getting 3 different kinds of sippy cups- one with a straw (the playtex one is good b/c the straw is simple and easy to use and does not require much suction); one with a hard spout; and one with a soft spout. DD2 easily figured out the straw one at around 11 mo, but with DD1, she never understood the straw thing and we went with the hard spout one.
What I like about the straw sippy cups is that we can go out to restaurants and DD2 knows how to drink from the kids cups with straws, so we don't have to carry the sippy around with us.
Also, FWIW, my 12.5 mo is still on 3 bottles. I am transitioning them all from formula to cow's milk ATM, and once I have finished that transition, I am going to start dropping to 2 bottles, then 1, and hopefully have her completely on the sippy cup by 14 mo. However, she really loves her bottle, and since she is like your LO (does not hold the bottle herself, likes the cuddle time), I am not going to rush it.