So I have been running Bugless Beast JB, and the battery life is just horrible. what is the best ROM setup for good battery life?
Was it better on any other ROM that you've used previously? I'm using [ROM] BAMF Paradigm v2.1 [4.1.1] JRO03H - Galaxy Nexus - Official BAMF Galaxy Development - TeamBAMF and it seems to working well. It's difficult to determine your usage by just your post, but multiple apps syncing, signal strength, screen-on time as well as a multitude of things can affect your battery life.
I didn't do much of anything. I use the phone for calls, texts, emails and a little web browsing. I'm by no means a heavy user, but with the 2100mAh battery, I easily get a full day of use and then some.