Perhaps the BEST B1G Forum anywhere, here at College Football Fan Site, CFB51!!!

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Probably right.
And yeah, my memory isn't great about who was misplaced...

My opinion is that balance of power between conference divisions is over rated and not important

what's the worst that happens if Ohio State, Michigan, Michigan St, and Penn St. are all VERY good, the West is very weak with the Badgers being the best of the bunch and go 5-4 in conference and win the division?

Are we concerned that a huge upset could happen in the CCG?  So what?

Is it that we don't want all the top teams in one division because they beat themselves up and all end with 2 losses and potentially miss the 4-team playoff?

IMHO, competitive balance is preferred but not necessarily the end-all-be-all.  There are a few problems with unbalanced divisions:

First, in the scenario you laid out where a mediocre Wisconsin wins the West at 5-4 while two out of three or three out of four elite teams from the East miss the CG the potential problem is that a CG upset likely results in no CFP representation.  If we instead had two elite teams in the CG then we would be almost guaranteed to get one of them into the CFP. 

Second, with the current setup the B1G-E teams that aren't as good have almost zero chance of ever winning the division.  The Buckeyes, Wolverines, Nittany Lions, and Spartans each will have their off years but the chances of all of them having an off year in the same year are near zero which leaves Indiana, Maryland, and Rutgers in a tough spot. 

One problem, of course, is that things change.  Most of us can remember when the B12-N was dominating the B12 with high-end Nebraska and KSU teams while OU and UT were down.  We can also remember when the SEC-E was dominating the SEC with high-end UF and UT teams while Bama and LSU were down. 

I actually am intrigued by the B12's idea of eliminating divisions and just having the top two teams play.  I think that is probably the best way to improve a league's chances of putting a team in the CFP because it guarantees that one of the top teams in the league will get a quality win on the last day. 

One interesting thing is that there haven't really been any major CG upsets in the CFP era:
2018:
 - #11 UW over #17 Utah
 - #1 Bama over #4 UGA
 - #2 Clemson over nr Pitt
 - #5 OU over #14 UT
 - #6 tOSU over #21 NU

2017:
 - #10 USC over #12 Stanford
 - #1 Clemson over #7 Miami
 - #6 UGA over #2 Auburn (a sort-of upset but not a big one)
 - #3 OU over #11 TCU
 - #8 tOSU over #4 UW (another sort-of upset but again not a big one and I'm pretty sure tOSU was technically favored)

2016:
 - #4 UW over #8 Colorado
 - #1 Bama over #15 UF
 - #3 Clemson over #23 VaTech
 - #7 PSU over #6 UW (another sort-of upset)

2015:
 - #1 Clemson over #10 UNC
 - #2 Bama over #18 UF
 - #5 MSU over #4 Iowa (another sort-of upset)
 - #7 Stanford over #20 USC

2014:
 - #2 Oregon over #7 Arizona
 - #1 Bama over #16 Mizzou
 - #4 FSU over #11 GaTech
 - #5 tOSU over #13 UW (technically this was an upset)

There is somewhere around a 1 chance in 5 that a somewhat decent team upsets a very good team, in the CG or otherwise, though your data suggests in a CG the odds are not that high (perhaps both teams are clearly motivated).  It can happen that a #2 team gets knocked out by a #15 team of course, it's a risk to some degree.

I like the divisions personally, but I prefer 12 team conferences.  Winning your division is a something anyway, even if that's all you do, especially for a program not normally competitive at that level.  It's not much for an Ohio State to win the division and then lose the CG, but it would be for NW.

I like that almost half the teams win their final game if they make a bowl. 

Defining "upset" as a win by a lower ranked team, there have been four upsets in 22* P5 CG's since the CFP was implemented:
 - #6 UGA over #2 Auburn in the 2017 SECCG
 - #8 tOSU over #4 UW in the 2017 B1GCG
 - #7 PSU over #6 UW in the 2016 B1GCG
 - #5 MSU over #4 Iowa in the 2015 B1GCG

That roughly equals the 1-in-5 that you suggested above but I think you were talking about a "major" upset and none of these were.  Two involved a team beating the team immediately ahead of them in the rankings and the other two were only four spot gaps. 

Furthermore, the only one of these that had an impact beyond the conference in which it occurred was Ohio State's "upset" of Wisconsin in the 2017 B1GCG.  Wisconsin's loss knocked them out of the top-4 but Ohio State's win didn't get them into the top-4 so that effectively made room for Bama to make the playoff. 

Impact of the other three upsets:
 - In 2017 #6 UGA knocked off #2 Auburn in the SECCG and effectively "stole" Auburn's CFP spot. 
 - In 2015 #5 MSU knocked off #4 Iowa in the B1GCG and effectively "stole" Iowa's CFP spot. 
 - In 2016 #7 PSU knocked off #6 UW in the B1GCG and neither team made the CFP.  Neither team would have made the CFP regardless of the CG outcome. 

*There have been 22 rather than 25 P5 CG's in the past five years because the B12 didn't have one for the first three years (2014-2016). 

Yeah, my "1 in 5" relates to a spread of about 10 points or so, meaning a #15 team upsetting a #3 team, for example.

Most think some upsets happen because the favored team is somewhat unmotivated that day, going through motions, but in a CG that seems as if it would be a diminished factor, versus say Bama on a roll 10-0 going into Starkville to play a 7-3 team.

So, my 1 in 5 might be more like 1 in 8, or more, hard to say.

18-4 is amazing and will not continue

18-4 is amazing and will not continue

Exactly, I think we are due for a haywire year where we have 2+ major CG upsets that throw the CFP selections into chaos. 

Exactly, I think we are due for a haywire year where we have 2+ major CG upsets that throw the CFP selections into chaos. 

and then the knee jerk reactions that are sure to follow...........