At this point in the football state playoffs, the great teams generally separate themselves. In some instances, that happened. In some others, the joyride continues for some of the upstarts. I broke down the semifinals for all eight divisions below. I only went 10 years back, to show recent tradition and power.
As you can see, the usual suspects remain in some divisions.

• That's certainly the case in Division 1, where the four remaining teams have accounted for seven of the last 10 state championships - each having one once over the last four years. They've made 18 semifinal appearances and 10 championship games. When you think about big-time football, you start with Rockford, Catholic Central, Lake Orion and Detroit Cass Tech.
• In Division 2, a lot of people had Muskegon and Brother Rice penciled into the championship game from the start of the season. And guess what? They're both still alive and kicking, on the opposite side of the bracket. Go figure. The two have combined for five of the last 10 state titles. Expect them to add to that number this year.
• It's a similar situation in Division 3, where DeWitt and St. Mary's bring a wealth of experience to the mix. But I don't think DeWitt matches up well with Grand Rapids Christian, which is 21-2 over the past two season and has beaten the likes of Lowell (twice) and East Grand Rapids. St. Mary's should be a shoe-in to get to Ford Field. But Battle Creek Harper Creek played the Eaglets tough last year. So we'll see.
• I wasn't around to see some of the great Country Day teams in the middle of the last decade, so this is a new experience for me to see the Yellowjackets in the mix in Division 4. It's hard to tell who the favorite in this division is. Country Day has experienced more success than the other three teams over the last decade. This is one of the most balanced divisions on paper. 

Should be an exciting weekend. One would think Oakland County's Division 1 teams might be slight underdogs. And I'm sure CC and Lake Orion won't mind that one bit. Brother Rice is an overwhelming favorite to get back to Ford Field, where it will most likely see Muskegon. If St. Mary's doesn't let up, it should make a return trip to Detroit as well. And Country Day has as good a shot as anyone to get back to the state finals for the first time since 2008.
I'll make my predictions later this week.

Division 1
Rockford
State champions: 2004, 2005, 2008
State finals: 2004, 2005, 2006, 2008
State semifinals: 2004, 2005, 2006, 2008, 2010, 2011, 2012
Playoff record: 33-6

Detroit Catholic Central
State champions: 2003, 2009
State finals: 2003, 2009, 2011
State semifinals: 2003, 2007, 2009, 2011, 2012
Playoff record: 26-5

Lake Orion
State champions: 2010
State finals: 2008, 2010
State semifinals: 2008, 2010, 2012
Playoff record: 17-8

Detroit Cass Tech
State champions: 2011
State finals: 2011
State semifinals: 2010, 2011, 2012
Playoff record: 14-5

Division 2
Muskegon
State champions: 2004, 2006, 2008
State finals: 2004, 2006, 2008
State semifinals: 2004, 2006, 2008, 2012
Playoff record: 24-6

Caledonia
State champions: 2005
State finals: 2005
State semifinals: 2005, 2006, 2012
Playoff record: 14-4

Brother Rice
State champions: 2005, 2011
State finals: 2003, 2005, 2011
State semifinals: 2003, 2005, 2009, 2011, 2012
Playoff record: 25-7

Wyandotte Roosevelt
State champions: 
State finals:
State semifinals: 2012
Playoff record: 10-6

Division 3
DeWitt
State champions:
State finals: 2003, 2004,
State semifinals: 2003, 2004, 2006, 2009, 2010, 2012
Playoff record: 23-8

Grand Rapids Christian
State champions: 
State finals:
State semifinals: 2012
Playoff record: 5-6

Orchard Lake St. Mary's
State champions: 2011
State finals: 2004, 2007, 2009, 2010, 2011
State semifinals: 2004, 2007, 2009, 2010, 2011, 2012
Playoff record: 27-7

Battle Creek Harper Creek
State champions: 
State finals:
State semifinals: 2011, 2012
Playoff record: 12-7

Division 4
Comstock Park
State champions:
State finals:
State semifinals: 2011, 2012
Playoff record: 9-4

Grand Rapids South Christian
State champions: 
State finals:
State semifinals: 2004, 2012
Playoff record: 12-7

Saginaw Swan Valley
State champions:
State finals:
State semifinals: 2006, 2009, 2012
Playoff record: 11-7

Birmingham Detroit Country Day
State champions: 
State finals: 2007, 2008
State semifinals: 2007, 2008, 2012
Playoff record: 15-6

Division 5
Menominee
State champions: 2006, 2007
State finals: 2006, 2007
State semifinals: 2005, 2006, 2007, 2010, 2012
Playoff record: 23-7

Grand Rapids West Catholic
State champions: 2010
State finals: 2010
State semifinals: 2007, 2010, 2011, 2012
Playoff record: 19-8

Portland
State champions:
State finals:
State semifinals: 2012
Playoff record: 6-9

Ann Arbor Gabriel Richard
State champions: 
State finals:
State semifinals: 2012
Playoff record: 6-5

Division 6
Shelby
State champions:
State finals:
State semifinals: 2012
Playoff record: 3-2

Ithaca
State champions: 2010, 2011
State finals: 2010, 2011
State semifinals: 2009, 2010, 2011, 2012
Playoff record:19-5

Constantine
State champions: 2004
State finals: 2004, 2011
State semifinals: 2004, 2009, 2010, 2011, 2012
Playoff record: 25-8

Monroe St. Mary's Catholic Central
State champions: 
State finals: 2005, 2009, 2010
State semifinals: 2003, 2004, 2005, 2008, 2009, 2010, 2012
Playoff record: 25-8

Division 7
Ishpeming
State champions:
State finals: 2010
State semifinals: 2010, 2012
Playoff record: 17-9

Pewamo-Westphalia
State champions: 
State finals: 2011
State semifinals: 2011, 2012
Playoff record: 10-8

Detroit Loyola
State champions:
State finals:
State semifinals: 2012
Playoff record: 7-6

Flint Beecher
State champions: 
State finals:
State semifinals: 2012
Playoff record: 6-5

Division 8
St. Ignace La Salle
State champions:
State finals:
State semifinals: 2011, 2012
Playoff record: 11-6

Beal City
State champions: 2009
State finals: 2003, 2009
State semifinals: 2003, 2004, 2007, 2008, 2009, 2012
Playoff record: 24-9

Muskegon Catholic Central
State champions: 2006, 2008
State finals: 2006, 2008
State semifinals: 2005, 2006, 2008, 2009, 2012
Playoff record: 22-4

Harbor Beach
State champions: 
State finals:
State semifinals: 2007, 2012
Playoff record: 11-7