TC III, to me, gets a free pass for a few reasons, none of which have anything to do with the project a cohesive album. It was one of the last rap albums to both generate a huge buzz leading up to its release and then move a ton of units. It produced two singles that were wildly popular with casual and non-fans alike ("Lollipop" and "A Milli") and two singles that were generally well received ("Got Money" and "Mrs. Officer"). And the album hit stores when Wayne was arguably at his commercial peak, so there's a bit of rosy-tinted nostalgia for a lot of folks when they think about it.
For me, TC III offered some choice cuts. "A Milli" is one of those rare songs that seemingly everyone loving didn't alter my perception of it. I'm not sure there was a rapper who didn't do a freestyle over that beat. "Playing with Fire," "Let the Beat Build," and "Comfortable" are tracks that I frequently revisit.
But the finished product is a staggering 80 minutes. There's just too much excess fat for me to ever ponder whether or not it's a classic album. Wayne had never been more marketable and likely won't be again. This was his best chance to deliver that classic album. TC III was a commercial success, but he missed the mark in that respect.