I guess we'll have to agree to disagree, my man... Because I am serious. Allen certainly shows up a lot more in film blocking, because that all he does... Gronk seldom commits to blocking, it's usually a chip on line or a slow-developing route, but when he does, he can maul over LBs and DBs. You can see how many blocking play we have with him as the lead blocker (Allen isn't as relied for those either, Imho). He does commit a lot of fouls though
I for one am surprised that you are so absolute regarding this, because I am pretty confident as well that Gronk is better than Allen blocking.