That vote is just fanboys Vs fanboys. I honestly find no sense in the AA batteries thing.
You can just plug a controller into a wall outlet, so the length of wire isn't really an issue, even then, you get stupid long wires.
Although you're right about the battery charge getting smaller over time. Can't say I've noticed it too much tbh, but I know it'll be there. I feel it's hard to judge because it appears some games use the battery faster? Not sure if that's just me being mental though.
I currently use batteries in Xbox elite controller, but that's because me charge kit got ridiculously hot i thought it was going to burst in flames
I'm now dreading the current batteries dying because I don't have any more and CBA to goto shop, I can just plug controller into the socket and use it that way though I think?