So I'm going to be starting a new campaign here at college, and I'm looking for something that I can run at the drop of a hat. The group members are all friends that I live with (college dorm), so this would be a "whenever" type of game that we can play at the spur of the moment on a Thursday night, or Saturday night, or just whenever we're sitting in the lounge and have nothing to do. I suspect we'll play at least once a week for four to six hours in total.
I've run Return to the Temple of Elemental Evil before, and so I'm thinking of running that, as I will need vastly less prep and know the entirety of the plot and characters better. However, I understand that Shackled City is evidently supposed to kick butt in every way. Can someone tell me what the key differences in style and "random playability" will be between these two campaigns-in-a-box? Shackled City seems more episodic, so having irregular sessions may not work well with it. But then, RttToEE is a vicious meat-grinder
Thanks for the help!
I've run Return to the Temple of Elemental Evil before, and so I'm thinking of running that, as I will need vastly less prep and know the entirety of the plot and characters better. However, I understand that Shackled City is evidently supposed to kick butt in every way. Can someone tell me what the key differences in style and "random playability" will be between these two campaigns-in-a-box? Shackled City seems more episodic, so having irregular sessions may not work well with it. But then, RttToEE is a vicious meat-grinder

Thanks for the help!