I got my Pre 2 Unlocked brand new a month ago and I noticed the same. What to do is turn off Facebook apps notifications completely, Change all your email accounts 'Get Mail' settings to around 1 hour, and go into Messaging and remove your IM accounts. ( Who uses AIM and Google Talk now anyways HP?! ) and that should be fine.
Try to keep screen brightness to a minimum, though it has a low effect on the battery life honestly.
Turn off the whole 'Google may use my GPS anonymously at any time to improve their services' , That's creepy and a waste of mHz..
Keep 3G & Wifi on. They don't have ANY effect on battery life , again, unless you use it.
I'm guessing you're not happy because the Pre is dying in your pocket. With those settings, it'll last a day with casual use and at a good standard. I hope my advice helps a little,