I choose this because I have to be very careful not to break more ice. Sitting on the edge will put too much weight on just one portion of the ice, hence I might fall as well. But if I crawl towards the edge, my weight would spread out and it will be easier for me to pull him out.
Once he's out of the water, I'd strip him off his wet clothes, wrap him with the emergency blanket and make him sit beside the fire while telling him "OMG you're so stupid." Lol. That's all, thank you. :)