Where is a good place to sell my iphone?

I just upgraded to an iphone 6. Now I need to get rid of my iphone 5. It's in great condition. I've had an otterbox on it since I bought it. There aren't any scratches or anything on the phone. It works great. I was told that I can sell it on Craigslist. That's a little scary. On the lesser scarier side, how would I know if they aren't giving me counterfeit money?

Where can i sell my phone and get the most money?
How much can I sell my phone for?
Can a cashiers check be made out to "cash", instead of my name? Certainly don't want to give a stranger my name!

Sell it on craigslist, wipe it so your icloud lock is removed and unlock through carrier and it will sell right away.