Will i regret buying the iPhone 4S?

Hello, so I have been interested in buying an iPhone lately to replace my aging LG Optimus 7. My options are to either get the 4s or spend the extra cash and get the iphone 5. I could get a 16gb 4s on a 3 year contract (the norm for Canadians) or do the same for the 5 and pay $180 up front. I would buy unlocked if I had the money but that's not an option as a university student. so basically, what am I gonna wish the 4s had that thee 5 does have? other than the larger screen of course. LTE isn't available in my area yet so that is not a factor either. Or I of course could wait it out till the summer when I have money and get the next iphone. what do you guys think?