I at least like to have an Easy difficulty option. I try to play on normal most of the time, but I don't like getting frustrated over games when normal almost seems impossible. I usually can get through games eventually even if they are really hard, but I don't have the time like I did when I was a kid to spend on getting better etc. I'd rather just be able to get through a game instead of getting stuck over and over to where I put it down and move on to something else. I'm a causal gamer though as I'm in grad school, trying to work a little to help pay for school, and I'm married.
I hate escort missions. Ones that flow well I guess are passible. But I've had too many bad experiences with escort missions making me not very fond of them. For instance, Kane & Lynch had a few awful escort missions.