I can’t speak for Rainy as I have never been there, but Devils can definitely be intimidating if you’ve never fished it. It’s essentially 6 lakes in one (East Devils Lake, Black Tiger Bay, East Bay, Main Bay, West Bay and Pelican Lake) and this isn’t including the feeder lakes or Stump Lake. This is a lot of water to dissect but at the same time, it usually means fish are biting somewhere in the system. It’s the most fun lake to fish in my opinion due to the different structure it presents you with (sunken road beds, old shorelines, sunken trees, etc.)