SPL is a really small sample size and shouldn't be used as basis for viability ranking.
Also, if you're a good spiker you're automatically an even better SR user, so I don't get why Ferrothorn shouldn't run it.
Can you please think about the awkward generalization you made and get back, because it's really too much to explain how wrong that logic is. It is actually a more interesting matter (what makes a good SR user/spikes user etc) so I'm willing to explain it if you just could phase out that notion...
PS. incase you didn't understand my post, I didn't base my argument for Ferrothorn's ranking on SPL stats (although I certainly could if I wanted to).
To make this post less useless I'd like to bring up some non uber mons that could be removed from the list:
Bronzong- Personally I already QC rejected this, you can find reasoning on it's page in CC forums.
Heatran- What do you guys think? I personally find 0 reason using this as it occupies very little defensive niche (loses to GeoXern even more frequently now, Pdon/Pogre comes in almost for free etc). Some discussion of just dropping this from the list is probably suitable at the very least.
Hippo- Can't wall much notable stuff these days. Don't see why this deserves to be on the last.
Mega Metagross- Honestly it might be pretty ill timed to remove if it's getting the boot from OU. Mega Metagross holds extremely high opportunity cost, is outclassed in many roles (think pursuit and xern checking mostly) and has several very prevalent mons that wall it, some even do regardless of what set you run. I saw Fireburn use it in SPL but I wasn't too impressed with why it was on the team in the first place. Was it because it was less shit vs Ho-oh than other niche steels?
Gothitelle- Hello? Do you want to throw away a precious team slot on a mon that not only is bad vs any offensive team, but also gets set up on by virtually any sweeper and forces your team to carry more solid checks to stuff? I am not interested in hearing what it can do, of course it would trap the occasional support Arceus like always. The problem is, it's not worth it because it will inherently shit up your team's match up vs anything else. It's a gimick at best now and at worst it's an excuse for not wanting to play or build properly.
Terrakion- This thing is exactly a good scarfer in my eyes, and it was never a good SR user. It is limited to revenge killing Arceus Normal/Dark and that's not much of use when it is very easy to exploit.
Victini- Again this is the kinda mon I just don't see anyone running on a serious team. It also gained a pretty solid universal answer in Primal Groudon, which at the same time pumped up the opportunity cost for using regular Groudon's sun. I did try this but eh, I think this mon is too limited vs any offensive team regardless of what you do.
Edit: got sniped