[Galaxy S II Android Development] fscherz:
I am still on 1.5 (will explain later why) and have some time the same situation.

To explain my setup first, I have 1.5 with Tegrak & SetCPU set to undervolt a bit from stock and overclock to 1300 only. p.s.: I cannot see the voltage tab in SetCPU which others are using without Tegrak :(, don't know why...

Anyhow, I also removed a view (Samsung) stock apps with Titanium but in general my findings are that battery usage is related usually to resource usage.

I therefore set my network to GSM only, the reason is I need it mainly for business and talk 3-4 hours a day, the reception at home for GSM is much better than for 3G.

I do have 4 mail accounts, 2 on push from 7am till 10pm (22h), the rest on half hour pull. I have other syncs like Reader, Google, ... running all time as well.

I also have LauncherPro (had it before also) with 3 home pages full of Icons and widgets (Weather, Calendar, contacts, mail, applications, ...).

I use NoLED for missed calls/SMS notification and some other nice tools loke GoSMS, Contact, Dialer and have maybe 200 applications installed, Games, tools, whatever is nice to have

Now my findings:

Last week on vacation in other country with WIFI & Bluetooth OFF, 1%/hour with small usage of GPS, Mails, SMS, Weather, ...

Normal home office (Wifi ON, Bluetooth on) 2%/hour, evel less if I am on terass with lower reception. Found out that other WIFI networks do not draw so much power than my D-Link

Normal ofice day usage (No WIFI, Blue-tooth on all day) 1.5% power/hour without talking.

From time to time (mainly after installing/updating apps) I have also the problem that battery is going down for 10+%/hour, device gets warm or even hot when charging. One time it got very hot and even after 2 hours it was only charged 10% more!.

Whenever this happens (4 times so far over the lifetime of LR 1.5 which is) I reboot, clear both caches (normal and davlik) and reboot again and the problem is gone.

In general, the ROM is really great because I get full day or more of usage which is better than any other Smart-phone we have (the family members having Nokias, iPhones, ...).

Because of that I was not comfortable to update to any newer ROM so far (never change a running system).

Other reasons are

I do not want to spend 2-5 hours (if no wipe, 4-6 hours after a wipe) to reinstall my hacked SW like the email which allows exchange without security

I am not sure if everything else still works and I need my phone for business every day and cannot afford not to have it working

I dislike that many times applications like the launcher or browser are changed/added/removed. I would like that the Rom get's only additions but no removals. I don't like to configure and re-learn new SW just because the kernal was changed!

I don't care so much on the nice to have things like color of Theme and so on, it should be good readable (also im the sun) and fast (background should be dark because this draws less power with AMOLED)

I care mainly on quality instead of quantity and speed. Things which I do/use everyday need to work best and most of them are not limited by speed of the phone but more by the reception quality (very bad for WIFI IMHO), simplification of interface (less touching) and good information.

To make the long post short: LP 1.5 is a great ROM, Thanks!!!!

If there is any good reason to change my current setup and install a new ROM then please let me know, but please in real benefits compared to 1.5 if possible.

Sorry, I don't wan to be a tester of unofficial builds of the SW.