In one fight, hardly a good sample size.
Aldo has the most proven followed by GSP and then JDS. Bones appears to have good tdd, but he's only had like 2 attempts on him.
Cruz and MM are obviously good, but I haven't seen enough of them.
Part of Anderson's strategy seems to be fighting off his back at times and he looks comfortable there, but his tdd is the weakest of the champs. Butbhe looked way way better in Sonnen 2.