WebRTC should use JESP or ROAP?

My understanding…

ROAP (hard questions answered via SIP experience):
Authored by Cullen Jennings @ Cisco, JDR @ Skype
– SDP-like offer/answer
http://tools.ietf.org/html/draft…

JESP (needs more definition?):
Authored by Just Uberti: Prod Mgr @ Google Hangouts & Google's Open Source Project webrtc.org:
– SDP-like offer/answer
– Removes network elements from SDP (STUN, TURN, ICE)
https://docs.google.com/document…

So which one? Not trying to stir the pot here, really do want to understand pros and cons of each.

Post your answer: WebRTC should use JESP or ROAP?