Don't have that much time to play. Wanna choose icecrown or lordaeron

Hi all. In my last topic i wanted to choose tbc or wotlk to paly (don't have that much time). I wanted to paly wotlk for fastest everything as tbc that is harder. The problem is that i don't know if i should play on icecrown ( read that is full of ganks, ninjaloot and so on that ruins the experience). I wanna play something more relaxing while playing and do easier/harder things only if i have the time to do it. What should i choose? Someone told me to paly alliance on outland server too which is faster as the horde sime but really don't know