Hey superpowerdude I'll edit this later because I can't really write right now but I wanna say two things. First, your links to rate 2 and 3 don't work for me, and in your rate 5 you suggest dropping Bug Buzz on Volcarona which is a terrible idea, since it gets you walled by stuff like Latios which is extremely common.
Edit: So alright about your rate 5, I really don't think the ScarfMence > Scarf Haxorus suggestion was that good of an idea. Reason is, Haxorus is also able to sweep late game, so I really don't get why you'd swap it for Salamence. If anything, both work in a similar way except Haxorus has higher Attack and Mold Breaker, while Salamence gets Moxie. I don't think this team has trouble with sweeping late game with 2 scarfers and Volcarona. Also I'll explain a bit more the reason why I don't like Giga Drain over Bug Buzz. They both cover different stuff but I think Bug Buzz clearlu has the advantage here, since it beats stuff you can't even scratch with Giga Drain, like Hydreigon, Latios (and Latias), and it also gives you the opportunity to beat frailer stuff that resist Fiery Dance like Haxorus. Without Sun boosted Fire Blast Bug Buzz becomes its most powerful move which is extremely important. If you really want to fit Giga Drain it should have been over HP Rock, since i's only purpose is to cover Dragonite, Gyarados and Salamence.
In my opinion your fourth rate is MUCH better, since it's probably true that Forretress is a much greater help to this team than Ferrothorn, considering he can cover the threats that Ferrothorn covered with his other Pokemon. However I feel like you could have explained a bit more about that change. In his reply after, he didn't seem to understand how much that change would help him, as he replied you that Forretress "was beaten by Fire and Water attacks". Maybe telling him that even though he loses Ferrothorn as a Water resist, he still has Latios which is one of the best, and it has great synergy with Forretress, while also having Suicune who can take a Water hit from something without Electric coverage. That would probably have made him understand your suggestion better and I'm sure he would have liked it.
I think your first rate is the best in the three I could see, and by far. You clearly explained what was the issue with Bronzong not having Hidden Power Ice, which is great, and why would Volcarona benefit from dropping Fire Blast for Giga Drain. Maybe he could have used Roost too in that situation though, as it is much more reliable for healing Life Orb recoil considering your opponent might not send Grass weak Pokemon against Volcarona, and Hurricane still does a ton of damage to anything that doesn't resist it but to me it seems alright.
Good job, keep up the good work.