My point of "Wak needs less prediction" is mainly that wak can get away with spamming EQ and sliding zap/skarm on the switch. Machamp can't afford to spam CC with its 8 PP, so it prefers hitting stuff with super-effective coverage moves. If CC had more than 8 PP, my argument would be invalid.
I'd have to agree with Mr. E that wak's electric immunity is about on par with machamp's ability to switch into spikes.
Umbreon and missy are two different things, so I'll look at them separately.
Umbreon is the least reliable of the pursuiters, getting boomed on by gar/egg and doing jack shit to missy, although it deals with Surf Starmie the best (albeit still needing a Toxic or a crit to beat) of the three. It's a reliable check to any variant of lax bar the obvious LK and BD ones, but it can't counter lax, whereas Roar TTar at least counters non-EQ variants. What it does do well is stall. It can't switch into most physical attackers, but it checks near all of them with Growl, while tanking special hits with ease. It excels in getting chip damage with Pursuit as said walled 'mon switches out, and fits on stall better than TTar, giving it a strong niche on stall teams by creating a divide-and-conquer wincon. However, that niche is certainly not worth B+ in my eyes, so I support an umbreon drop.
I honestly think people misunderstand missy's niche. It's not perish trapping, although that's easily its best set. It's being a spinblocker bulkier than Gengar and not being weak to Ground and Psychic. Forcing the opponent's hand with PTrap sets are a large boon for stall, acquiring chip damage on whatever phazer the opposing team has or getting a free Electric switch in the case of Skarm. It doesn't need to run PTrap, either: it gets access to Destiny Bond, Pain Split, Rest, Toxic, Growl, Hypnosis, and Thief to play around with, along with its other tools. I'm fine with missy in B+.
Now, other than the current topics of discussion, the VR seems to be solid from ranks Snorlax through C+ to me (less sure about C-, but still relatively confident with their placements). What I want to look at is D rank. A lot of mons in it just don't seem to be worth what they bring to the table. I know I added Ursaring to D when I first made this thread, but I'm honestly having strong second thoughts about it. Some things I could see happening:
Donphan -> Unranked. All it has over Rhydon is a ground neutrality and Rapid Spin, and Golem has Spin. Gets hit just as hard by HP Ice/Water as the rocks, and hates losing a normal resistance.
Entei -> Unranked. I'd frankly rather use Houndoom as a sunnybeamer, beating non-EQ machamp isn't worth a ranking.
Moltres -> Unranked. Worse than entei IMO, at least entei has solar beam.
Ursaring -> Unranked. A cursetalk lax with more immediate power but low bulk and speed, and incredibly predictable.
Quilfish -> D. Basically agreeing with Jorgen's reasoning
here.
As for my reasonings why the others should stay:
Ampharos is the one electric that isn't walled by lax, due to Dynamicpunch. It also has assorted stuff like Light Screen and Fire Punch, but those don't really hold that much weight.
Sandslash can switch into spikes, unlike wak, and Substitute is a cool option to use - Skarm's Drill Peck can't break it in one hit, so you can effectively set up on a low-health Skarmory if you want.
Venusaur has a solid footing in D with its growth set, not really much discussion to be had here.