I just went to Lake Michigan for the first time and had a great time at Van Buren in South Haven. Also, South Haven and Saugatuck are great little towns to visit- many good places to eat. We ran around the area on a motorcycle and camped in our 5th wheel.
I'd like to try the fishing sometime.
Also camped In Dunes (National Park Campground) area around Mich City. Nice views of Chicago from lake but the towns and roads aren't so nice to visit. You can take the train to Chicago and eat at Bartletts.
I don't think you can go wrong but I prefer Van Buren. The Kettle Morraine in WI is nice too.