I wouldn't do a list until I can come up with at least 25 because I'm obsessive compulsive about numbers.
At present there's a lot less than that I can think of for the Genesis. Also I'm not nearly as much of a fan of the Everdrive as I am either of the Powerpaks. They're just simply superior devices.
But I will *eventually* make a Genesis/Megadrive list. Just not for a while.