I have to dispute that - he's a clear rung below when you look at things like metres per run and tackle busts. Guys like Scott and Tamou regularly top 10m/run along with shedding tacklers, whilst Graham's 130-odd metres often come from 18 or 19 hitups.
Clearly he is not as big as those blokes, though he makes up for it with his Motor.
The minutes he plays and the tackles he commits compared to missed or inefficent is a huge positive in his favour to. He could easily play 80 minutes if asked.
A fact a stat doesn't tell is how much ball playing Graham does, he might look like he is set to take a hit up and shuffle the ball along. Tamou and Scott don't do this. Barely any prop in the comp comes close to him and his ball playing ability. I think this is a point RWB was trying to get accross.
Don't get me wrong, I said earlier i'd have Tamou at #1. He simply is young, big, strong, fast, good foodwork and a pretty good motor and he is still learning. Not to mention he is playing with one of the other best props so it is a huge effort to stand up week in week out and look as good or on par.
Though i'd have Graham in the top 3 with Matt Scott. Graham also has to preform along with two of the other top props in the comp in Kasiano and Tolman.