Those are quite personal preference. You might want to compare from user uploaded youtube clips. Compare with other phones you think might be the upper tier (Iphone, Desire HD). Camera is pretty normal to me, but I like having a dedicated physical button for it. On weekdays when I'm working I use the phone on full (ebuddy, gtalk, whatsapp, phone calls, sms, news, internet, 3.5G network) with as little syncing as possible but it'll drop to 25% by 3-4pm. During weekend I don't use the internet and ebuddy running on Edge it can last 2 days easily with 30-40% left.