Most people consider the top 64 and in general you will have the vast majority of deserving teams get a chance.
With football, let's just take 4. Yep, just 4. Oh and let's take two from the same conference who have already played each other rather than giving another conference champion a chance. Makes no sense to me.
Basically what I am saying is I think the conference championship should be a defacto first round of the playoffs.
If you open it up to more teams I have no problem with wildcard teams making it and maybe the sec deserved those wildcard spots, but until you have enough spots, wildcards shouldn't take the spot of amotner.
Just my two cents.