Upgrading iPhones? 5c or 4s?

I currently have an iPhone 3GS so yeah I'm due an upgrade! But what would be the best choice, a contract iPhone 5C or contract 4s?

IPhone 5C

The 5c. It has better specs.

Definitely the iPhone 5c is the one I recommend. The iphone 4s is just the same as the 4, I don't see much differences there. But the iPhone 5c on the other hand is different and unique, also looks nicer. In a comparison of both phones clearly the iphone 5c wins.

IPhone 5C is better.

IPhone 5C

Go for iphone 5C because upcomeing IOS does not able to support iphone 4s

5c. Why the hell would you go for the 4s?