Rhyperior - The current Rhyperior analysis is a clusterfuck because of the combination of OU and UU pieces, probably because of the success Hector had with Rhyperior in OU. However, since Rhyperior is now UU, the analysis should reflect its tiering.
The Standard Set is fine, the only nitpick I have is maxing Speed. Most Omastar don't run minimum speed, so Rhyperior is outsped and promptly KO'd. The HP EV's are nice to make 101 HP subs, but I would think outspeeding common walls is more important.
Rock Polish set is fine.
The 'Sandstorm Special Wall' set is more OU material for me, and thus should be removed. In testing the lack of power was clearly noticeable and made Rhyperior much less effective in the match. Should be removed.
On the Choice Band set, again max speed for reasons already stated.
The 'Trick Room' set and beyond should all be removed because they are highly ineffective and rare as-is. Other options is probably the place for this set.
The OU sets should be dealt with by OU QC.
Rotom
So Rotom is fairly good in terms of the on-site analysis. My only suggestion is merging the Status Platform and Sub + Pain Split sets. Toxic is worthless on the Status Platform set, so I think something along the lines of:
Thunderbolt / Discharge
Wil-O-Wisp
Substitute / Shadow Ball
Pain Split
This covers both sets and is much shorter and concise.
On the Choice sets, HP Grass should be replaced with Ice for Torterra and Dragon Dance Altaria.
In other options, I think its a good idea to mention a better EV spread for a bulky Scarf Rotom, with enough speed to outpace Adamant Rock Polish Torterra. I don't remember the exact spread off-hand, but its definitely 252 HP, Timid Nature, I believe 188 Speed, and the rest in Defense.
Sceptile
The Sceptile analysis from a UU perspective is quite good. I tested the Sub + Leichi set and its surprisingly good. Since Sceptile forces a lot of switches, its quite easy to get a Sub + SD in, and then proceed to wreck with Leaf Blade. Priority was a problem, but I only had trouble with Ambipom leads that I didn't kill fast enough. Of course, the set has trouble with Tangrowth and Leafeon, but most Sceptile do.