I'd vote for this resort on Lake Nipigon.
http://www.mccollumsresort.com/resort.htm
The place is clean and well run. Nothing fancy but great value. The scenery in the area is stunning with very little boat traffic. You see maybe a boat or two if any, on any given day. Bring a small boat and there are plenty of backwoods fishing lakes that will amaze you including some bass lakes. At the "resort" you are right on Lake Nipigon so if you have a large boat you can fish for some world class lake trout out on the main lake. Near the resort there is perch, pike, and walleye. The top of Superior is just stunning. Oh and check out the website for their lake Nipigon fishing tour. Met two American older couples there last year. One set came from Texas and stayed the whole summer. The other from Ohio and stayed a few weeks.