A few years ago I got the S1...fantastic...and then I got the S2 and gave the S1 to the wife...wife was very happy and I couldn't fault the S2...would love an S3 but the S2 does every possible thing I want anyway and the wife is still very happy with the S1
Throughout the day pretty much, I don't do much in the way of gaming and the like on my phone because I have my Nexus 7, but email, e-reading, texting, calls, skype, Trillian, Google+, web browsing, occasionally youtube, and other things.
If I don't use it much I can get about 2 1/2-3 days.
I installed a custom ROM(AOKP) and I can get like 10 days or so with very light usage. I don't typically close apps either, as I like to have the snappiness that comes from having apps that are already open.
I need to retire my Original Droid.
Screen is taking a long time to redraw and even though I have few apps in internal memory I still get low memory warnings.
Could just be I have a lot of exchange email.
I only know one person with a Galaxy S3 who likes it a lot.
It's either a Droid Razr Maxx or Galaxy S3.