Woah there. Before we go bashing the ICS build, you're going to need to provide more info. Both of you need to provide more battery stat screen shots. ICS alone doesn't eat 25% an hour, unless you have a between half a bar of signal and no signal, floating between 3g and 4g, with the wifi on and no wifi near by, AND a defective battery. THEN maybe. You're telling me if you leave it ALONE on a table for four hours with a good signal it would be dead? I doubt either of you are running zero apps, just a stock bionic on stock 246. with absolutely nothing added to it?
I'm not bashing either of you, just trying trying to put it all in perspective here. Our ICS build is actually pretty darn stable. Go to the market and get either GSam Battery Monitor, or Better Battery Stats, let those gather data for a day or two and post screen shots of the results, so we can have a look and possibly help.