Does the phone consume less power when 3G disabled Vs 3G & WiFi Enabled? I found couple of questions about it but they are two year old.

So Is it better to disable (in the top panel) 3G when I have an active WiFi connection and disable WiFi (in the top panel) when I doesn't have active WiFi connection and enabled 3G Data connection?

By better I mean consumes less battery power
You'll definitely have better batty life when you're not using wifi if you turn it off. I don't believe turning off 3g when you're on wifi will save much battery life, because Android is already automatically routing all communications over wifi.