Semi-Scientific Test on iPhone 4S Battery Issue w/two iPhone 4Ss

All,
My wife and I ordered identical 16 GB iPhone 4Ss. They were set up the same way. From the very start, I could tell that her battery was outperforming mine.
After a day of turning off and on various settings, from Location Services, to Siri, to iTunes settings, etc. I still noticed a huge gap in stand-by performance. I was losing 1% per 10 minutes, her phone was not.
Today, we had similiar usage with similar network characteristics (WiFi, decent 3G coverage) starting from a full charge (100%). After 8 hours, her phone still had 52% remaining. Mine died on the way home from work.
So tonight, I performed a test. I plugged both phones up and allowed them to fully charge to 100%. While plugged up, I ensured each setting on the phone were identical, including the number of Exchange accounts, brightness level, etc. At 9pm CDT, I unplugged them. My phone took a long time to get from 99% to 100%, her phone didn't. Mine also went to 99% upon unplug, her's didn't.
Neither phone was used at all, stayed completely in stand-by mode. At 10:15pm CDT, ...her phone remains at 100%. Mine is now at 92%. That's roughly 1% every 10 minutes on my phone, same thing I saw earlier in the day.
I think this, for me at least, confirms the diverse results folks are seeing. Some folks are seeing major battery issues, some are seeing better battery life over other iOS devices. It just so happens in our house, we have one of each. Why would two identical phones behave so differently? I've exahusted all possible options on my phone, including the recently posted attempt at deleting e-mail accounts and resetting network settings.
Does Apple recommend that I do a restore on my phone? I am trying to do so, but I am having issues re-downloading iOS 5. If I still see the same battery drain, I believe I will take this into the Genius bar.
I do believe it's time that Apple address this battery issue. I for one, based on experience, believe it's real, and could be a manufacturing defect. I don't know how else to explain two identical phones having vastly different stand-by results if my restore fails to fix the issue.

After spending 2 days troubleshooting I have found my battery drain culprit. When I turn my wifi on it coninuously disconnects and reconnects to my network. This was draining my battery about 1% every 4 minutes. I went through all the turn this stuff off, reset network settings, setup phone as new, helped some but still had the issue. This morning I set mine and my wife's up the same, she went to work and was playing music on the way in. Still had 100% after 40 minutes. I was at home with wifi on and dropped to 90%.
I charged my battery back up, turned wifi off and now after an hour still have 100%. This is with siri on, icloud on, notifications on, etc.
Can anyone else confirn this is an issue for them. I am trying to determine if it is hardware or software related.
Thanks

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Edit *
http://i46.tinypic.com/14adhye.jpg
http://i45.tinypic.com/2hdxtux.jpg
http://i50.tinypic.com/23j1f0y.jpg
Currently 3:56 am and Battery is now 11%

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