I think you shoud stay on Swedish Snow. Battery works longer. Rom is fast and smooth. There is more space on apps. Swedish Snow works on partiotion /system 128 then on data you have 326MB. This is the best choice if you want to have no problem with the phone.
I have this rom since last update. Phone working without charger about 24 hours. I think it's normal with this phone. Sometimes you shoud discharge phone to turn off and charge in this state then battery working better. It's work with my phone.