The Milwaukee R. as a little of everything in it. And in the winter some of it can even end up migrating into downtown Milwaukee. I have caught 50-60 Browns this winter, a 19" walleye, 30" Pike, steelhead Largemouth Bass, and a few Smallies. One Smallie was 15" last weekend. Just an average Smallie but its literally downtown Milwaukee and 6 degrees outside. Its a unique fishery.
A few years ago, I caught a 28" Musky from shore at Firemans Park above the dam and one smaller one at Villa Grove Park. I go up there once in a while to just walk the banks and cast. I can tell you that my best bait, hands down, was the 1/8 oz Do It crappie spinner bait, #2 Copper Indiana blade, and a 2" or 3" black twister tail. I caught everything from the Muskies to crappies on that bait. I don't even bother with much else.