I am confused as to why Blissey is ranked so low as B+. This pokemon is on 2/3 of all stall teams, possibly more, and for good reason. Blissey is to stall what Vape, Umby, and Florges are to balance, and should be ranked alongside them in A-, at least. I would even push for A, frankly. It can wall significant portions of the metagame. Its biggest flaw is that it is weak to powerful physical moves and STAB fighting attacks are common in UU, and this is easily compensated by running fighting checks and physical walls alongside it. Any decent stall team will have fighting checks and physical walls on it anyway so this is hardly much of a stretch. Blissey frees up so many teamslots by being so good at what it does that you only need to run one other specially defensive pokemon alongside it, at most, to take trickscarfs aimed at bliss. It can use its free turns to do any number of things, like set up rocks, heal the team, fire off wishes, or use seismic toss to take of about a third off an incoming Lucario/Hera/Machamp's health, limiting the number of times they can switch in. It can even run T-wave to cripple its checks, if you want. Of the A-Rank mons I see, Maggron, Beedrill, Krook, Luke, and Megapert can force it out, but it can switch into and beat most sets belonging Zam, MegaBlast, Queen, MegaPidge, which is no mean feat, and is as good a defensive answer to Shaymin as you're likely to get.
I feel as though Blissey should be A Rank from its unparalleled virtues in stall and as one of the best defensive pokemon in the tier. I can't speak for its virtues in balance, but I have seen it on balance teams, so obviously it can't be terrible. But, for the love of god, what is it doing in the same rank as Arcanine and Roserade???
I fell as though Granbull is fine where it is. It's bulky, yes, but it's also very ineffectual, even for stall. Even though it forces a lot of switches it can't do anything on its free turns other than heal the team, which it isn't even that good at because it'll be asleep a lot of the time and has to rely on Sleep Talk, which can be frustrating.