Should i shut down or put to sleep my macbook pro?

i have read a few threads on this but i was just wondering....

Mine's always on! I only shut down my mbp when I have to travel and won't be back within a couple days.

I would shut it down immediately, just in case.

Wait, what?

is it bad for the macbook to just leave in sleep? do you leave the charger in when its in sleep?

it is not bad to put your macbook to sleep when you are not using it.
I would leave it plugged in, but sleep does not use that much battery.
I only shutdown when I need to; switching to windows, software installation, etc..

i shutdown every night, I dont see any reason to leave it running. It only takes 30 seconds to start in the morning so its not a huge hassle for me.

That's what i do too, shut mine down at night. When i'm not using it during the day, i put it into sleep, it's more convenient for me.