It's not a dead horse as long as some continue to ask for help and education on the subject. Keep in mind, new traditional hunters come to this site everyday.
Michigan has no minimum poundage requirement.
My guess is, as compounds get more advanced and since most still use compounds, all states will eventually drop minimum rules, except for dangerous game. Todays 30lb compound is better than the 50lb compound of yesteryear.
To answer the main question, anything around 35lbs and up is just fine, if you limit the range.
For most Midwest deer hunters and hunting situations, I'd say around 40-45lbs is just perfect. Most bowhunters, traditional and compound, are about 10-15lbs over-bowed.
I've yet to get anything but complete passthru's with 40lbs. Before I had my rotator cuff surgery, I was going to use my 28lb Bear Kodiak Special, with a 2 blade, and keep my shots to about 10 yards and under. While I decided on a 35lb 1959 Kodiak, I have no doubt that I could have cleanly killed a deer at 10 yards, with the 28lb bow, matched with a hair shaving 2 blade and a shot in the lungs.