I am going to go for baby polly. I imagine in years to come she will be worth more because she has an antique look to her gown and bed. I think that Baby Polly will be more appealing to people who are non AG collectors than say the baby for AGoT

I would personally get baby polly because I'm more into old looking things. But each person is going to be different. You need to ask yourself what is going to be its purpose. If its for a little girl... its gonna be tough as I imagine it would be alot of fun to have your doll push a little stroller around.