Go to Cedar Springs.
Stay away from Brushy if you plan to beach your boat at the ramp. There's some huge rocks right under the water on the bank you can't see.
I noticed the scratches on the hull of my boat after a couple of trips.
I favor either Cedar Springs or Overlook. Those are my preferred ramps!
If you go to corps lakes much, get the yearly pass. They are good at ANY Corp park, not just boat ramps, and not just in the state.