IPhone 4 vs Droid X Battery Question

Question

I currently have the Droid X on Verizon and am fairly pleased with it, but I plan on switching to the iPhone 4 as soon as it is available in February because I see it as a far superior device in the aspects I care about the most. However, after looking up reviews and other peoples' opinions about the battery life, I don't really know what I should do.
Today, after having my Droid X since July 18, I used my phone probably the most I ever have. I took it off the charger this morning at around 9:00am EST, and now at 12:52am EST next day (15 hrs, 52 mins uptime), I have ~25-30% battery left. That's after about 3-3.5 hours of the display being on, probably about 20 minutes of voice calls, a lot of browsing that I didn't keep up with unfortunately, some YouTube watching that I also didn't keep up with, and just random playing-with-my-phone stuff. BT, Wi-Fi, and GPS are all off, the display is set to auto-brightness, and 3G has been on the entire time. I also received a few emails via IMAP Push. All of this is with the standard, stock battery.
Does this sound like what I should expect with the iPhone 4, or should I expect less or more? All of the people I talk to have different things to say about the battery life, and all the comments I read on the internet have me worried that I will not be pleased. Don't get me wrong, I LOVE the iPhone hands down. But I want a device that will last me through a day of heavy use and still have considerable juice left over.
Thanks in advance!!

Answer 1

Most likely you'll get longer battery time with the iP4. I don't use my phone the same way as you (more phone call time, less browsing), BlueTooth, WiFi, Location Services, push email, push notifications always on, and it takes 48-72 hours on before getting down to 20%.
These are the official battery specs, which are accurate:
Talk time:
Up to 7 hours on 3G
Up to 14 hours on 2G (GSM model only)
Standby time: Up to 300 hours
Internet use:
Up to 6 hours on 3G
Up to 10 hours on Wi-Fi
Video playback: Up to 10 hours
Audio playback: Up to 40 hours
Message was edited by: modular747