BB and football are two different sports makeups and tournaments. I'm not sure what you even think you are proving by talking about BB anyway?
Back on topic, there are really only 2 fundamental difference between yours and my setup. I have thought about what you have proposed and find these errors in your proposal so glaring that it has to be corrected.
1) You are letting teams in that didn't have to play a 13th game, they earn a bye and advantage that is so significant it simply can't be ignored like you keep ignoring it.
2) You are saying that 10 teams have the right to play for 5 playoff spots, and those 10 teams aren't even the top 10 teams in the country. So for instance you are saying that a #11 Wash and #17 Utah deserve the right to play in a game that determines one playoff spot, but you think it is soooo crazy to have a #7 Michigan vs a #9 Florida or a #12 Penn St. vs a #8 UCF to also play for the right to determine one of the 3 at large bids? What sense does it make in your system that a Michigan and Notre Dame get a bye in the first round while everyone else is playing for their spot?
Just adding 3 more games fixes all that, it is only adding 6 more teams to what you are already proposing. It is basically guaranteeing that the top 10-16 teams (some years teams outside the top 16 will make CCG).
Listen, I get you don't agree with me, but don't act like your "playoff Proposal" fixes everything. It just kicks the can down the road, because after 2 years of 8 teams, people will be up in arms about the inequities that I have pointed out and it will move to 16 anyway. There is a "sweet spot" for these things, the NCAA found theirs at 64/68, and I think 16 is that sweet spot for the NCAA football the way it is currently constructed. With 5 conferences, it just muddies the water. If there were 4 conference this would be much easier and 8 would be the answer then.