With discounts and rebates on the '13 the price difference in the '13 and '14 will probably cancel out any loss of value that you might experience buying the '13 instead of the '14. Remember either car depreciates the instant you drive it off the lot anyway. Buying the '13 now will also put your vehicle miles in a better place down the road when you trade. At the end of 2014 the '14 model is technically 1 model year old but it will have 2 years worth of miles since you drove it 10 months of 2013.
If you are REALLY patient, wait for the 2015. Maybe it will be out about this time next year, or at least we will have seen some leaked photos or spy shots and have a real good idea what it will look like. If your aren't THAT patient, I'd go with the '13 asap because they are disappearing quick.

 

used 2013 might be a good choice.

 

Thanks people, really appreciate the input