Usually 12+ hours, but I have chargers everywhere and I am in the habit of charging my phone everywhere I can whenever I can (from actually having phones with absolutely terrible battery life, like my windows phone which would go from 100% to 30% in 3 hours at the rink, so I always had to keep it plugged in there). This phone is much better than that, as well as my Vibrant which was good for 10 hours on heavy use, easily.
If I'm in the car, on the couch, on the ice at the rink (there are plugs at the boards), on the Amtrak (ditto), or at my computer it just seems irresponsible not to have my phone plugged in. The only time it isn't plugged in is when I'm on the move and I'm using it. There are also those things you can buy to plug into your phone to bump charge them - I might try one of those, but like I said I tend to manage my battery well and it never really inconveniences me because those are all common sense choices IMO.
2 Caveats, though:
1. I barely talk on the phone, like... really barely. Some months I'm under 50 minutes used, and I'm almost always below 100 (that's adding anytime with Nighttime/weekend).
2. I'm not in an LTE, area, but LTE is a perk (and good for future proofing for when it comes) for me since I consistently get fantastic speeds on AT&T's HSPA+ network (up to 10-30x faster than T-Mobile here depending on time of day - TMo's speeds on a full 3G signal range from 150kbps to just over 1mbps, AT&T pulls 10mpbs HSPA+ with 3/5 bars).
The Stocks app doesn't kill battery, unless you tell it to. It's in Sync. You set the Sync Frequency. Tell it to Manually Sync only. A lot of those apps you disabled aren't killing battery because:
1. Just cause something runs doesnt mean it is using CPU,
2. Most of those Stock Apps have settings that allow you to stop them from synching in the background
3. Some of them are PUSH updated (like Talk) and don't pole, anyways. PUSH uses negligible battery.
In some cases you're trading one app for something that is no different. For example if you have the Google Reader app installed, you're better off just using News (which Syncs with Reader) and uninstalling Google Reader. Same for stuff like EverNote. You can just use the Notes app unless you have some specific requirements specific to the 1st party app. I do agree with *most* of the bloatware, though (esp crap like AT&T Navigator and City ID). I have installed or Disabled most of it. Most stock apps I have kept, since they have almost no impact on the performance of the device or the battery life, anyways, and offer some value. If I disable FriendStream then it means I have to install another app like TweetDeck or Seesmic to post to both Twitter and Facebook at the same time (don't like connecting them since some stuff I post to Twitter, I don't want on Facebook

). So in that case I'm disabling a stock app simply to install a third party app that is barely superior - or even inferior - in user experience.