It was alot of years ago for me..my daughter is 16 now..but I was a "mean Momma" and did cold turley. I took it away, and also, in my house, we only ever drink things in the kitchen. Cups do not go elsewhere in our home. So she fussed a few days and was over it. We snuggled in her room and did an extra story and it was fine.
I also do home daycare and shoot for that first birthday for kids off bottles. Again, I am the meany and just cut them off cold turkey and suffer a few days of their anger and some shorter or screwed up napping. But they figure it out and we move on. If you let the child decide...they would never let it go I think.