Firstly, I’d like to say I also believe that Alex had a fairly lacklustre year last year and based on that he should be in NSW Cup to start the year only coming into first grade as cover or if he has earned a promotion by playing out of his skin.
However, your statistics are not comparable and could be improved. 
Firstly your sample size is 1 second rower from every team and based on what I know it appears to be each teams strongest 2ndrower, but Alex is certainly not our strongest 2ndrower, Sam Fainu is. Most teams have 2 or 3 2nd rowers in the line up so if you wanted to prove your point that he was statistically the most innefective starting 2nd rower in the comp (which he probably was with Sukkar) then you need to compare him with 33 other 2nd rowers not just 16. Secondly Koloamatangi had played a majority of the season as a prop (although he might have played first 9 as second row), so not worth comparing. 
The other thing is your statistics are probably best shown on a minutes per statistic basis as well as the aggregate scores (although not for run metres). It makes it a lot easier to see that players output on a comparable scale to effectively compare between the two. I would also include tackle efficiency if you are going to show missed and made tackles even though there is a lot more to defence than just that. And things like tackle breaks, line breaks are important statistics for 2ndRowers.