It'll be interesting to see how IFE shakes out over the next few years as airlines have so many different approaches now - AS going like UA with streaming wifi, WN offering free streaming for now, AA/DL with AVOD. Wasn't CO initially going to install AVOD in the 737/757 domestic fleet but LiveTV offered a sweeter deal?
Honestly, I think AA is going to have the best IFE in the (domestic) sky even if the AVOD is for-pay, with power ports and wifi as alternates. The way DL/VX does it is also great, with a limited free selection and plenty of paid options as well.