Both machines would be good for what you're proposing to use them for. The MacBook Pro non retina machine has the advantage of being fully upgradeable. You can add memory, install a SSD, and it has a DVD drive. However, it was first sold in 2012. So it's really a 2012 model still being sold in 2014. Nothing wrong with that as it's still a good machine.
The retina model MacBook Pro can not be upgraded after purchase. The memory is soldered to the logic board and can not be changed. The hard drive is a flash drive which also can not be upgraded by the user. (Not easily anyway.) It's a faster machine, later model, and has a better display. Also more expensive.