Takedown Scoring (Relative)
I think a big problem exists with judging the exact value of a takedown, as in people wanting to give it a definitive value in the scoring criteria. When in fact these takedowns have to be scored relative to each individual fight.
For example once a guy proves he can get back to his feet after a takedown, without assistance from a referee or a clock, then the value of takedowns against him has to become devaluized by some degree.
Of course a problem would still arise in situations like the Machida/Davis fight, where because of the timing of the takedowns, we were never given a good opportunity to see what would have transpired with a little more time on the clock.