Dan Hanner does a great job of using advanced analytics for college basketball at RealGm.com. The MAC ranks high in terms of returning minutes.

http://basketball.realgm.com/article/235040/College-Basketball-Preview-14-15-The-Rest

Excerpt:

MAC: Toledo is going to get a lot of love based on the players they have coming back. The only reason I don’t have them as the clear MAC favorite is that I think they still have a lot of questions in the front-court. Nathan Boone is 6'9" but he is a poor rebounder and he plays much smaller than his size. Matt Smith is gone. And as great a rebounder as JD Weatherspoon is, he's still only 6'6". Toledo was a brilliant offensive team last year, but the lack of quality interior play meant the team's 2 PT FG% defense was dreadful. And if Toledo can't stop opponent from making 2's, I'm not sure they can do much to improve on last year's record. They need one of the young forwards to take an unexpected leap forward. Unfortunately, Zach Garber was very passive last year, and Aubrey Williams barely saw the court, so there isn't a lot of reason to expect those two to be quality post players this year.

Akron loses a ton of production, but Deji Ibitayo and Isaiah Johnson were quality reserves that should be ready to step into bigger roles and keep the team on a winning roll. The return of Jake Kretzer, who was injured in mid-February last year, will also be huge. Ohio also loses a ton of production, but their MAC title chances hinge on whether Kenny Kaminsky is granted immediate eligibility. Since he was dismissed from Michigan St., I think there is a strong chance Kaminsky will be granted a waiver.

When you look at my rankings at the end of October, Western Michigan may stand out as a surprise. A lot of people will have them as the MAC favorites after star David Brown was granted an extra year of eligibility. But I’m really concerned about the loss of 6'11" center Shayne Whittingon. Western Michigan didn't have another player over 6'6" in the final rotation last year and they don't have any key transfers coming in. They will likely be using a low-skilled inexperienced big man, or a very small lineup next year. Brown's return means the offense will be better, but with a slightly worse defense, I see them as a MAC title contender, not the favorite.

Finally, Kent St. looks like a sleeper team. Not only are four efficient starters back (Kris Brewer, Derek Jackson, Devareaux Manley, and Kellon Thomas), the team also adds three D1 transfers. The key is Jimmy Hall. Hall was kicked out of Hofstra after being arrested for burglary, but he was off to a brilliant start as a freshman. He looks like a very high potential option. Rutgers transfer Craig Brown and Rhode Island transfer Blake Vedder don't have quite the same upside, but the drop in competition level should help them, and after how poorly Kent St.'s bench played last year, their experience will help a lot.