Judging by your post history, you seem to know your shit about OU, so I'd have no problem having you cover a topic such as this one. My only concern is that most of the mons that's in that rank has already been given a mention or two in both previous articles and articles planned for this issue (Genesect and Mega-Venusaur being the only exceptions). Granted, you're aiming for Issue 34, so it's not like we're double booking certain species, but to avoid repeating ourselves too much, perhaps include some mons from the A+ rank? Just an idea.
I'll leave this thread open a while longer, but as far as I'm concerned, you're free to setup the thread in the workshop since you have access to it already. And thanks for helping out with HTML btw. :)