Char-Y has steadily been going down, with Heatran going up (usually duking it out for #3 of the top twelve with Thundurus), Salamence has gone up a bit, and Gardevoir has overtaken Charizard on the top 12 too. Going by PGL stats that is.
Azumarill... I should try, actually. I run Venusaur almost all the time so it's hard to gauge what it's like to... not have a sun boosted Venusaur in front of it. lol. But yes, I see no reason to bump it up to A at least.
imo yes, Salamence is the second best Mega right now. As much as I cringe to say it, Gardevoir may be #3 atm.
Bulky waters, well, all bar Rotom-W do much less to Azumarill than Azumarill does to them.
Cress... CM + Expert Belt sets are fucking annoying and it's not like Cresselia doesn't get free turns by virtue of just being ignored in favor of murdering its partner. It's annoying but not too hard to manuver around, A is fine. Great supporter, pretty much best Speed controller in the game, only thing it lacks is Tailwind. Just needs Thundy repellent.
Two things: Bisharp, and Hariyama.
1) Does anyone remember the last Bisharp they saw, nevermind the last one that was actually threatening? And it's still A-? B+, B imo. It doesn't suck, but much like Swampert it needs support and is absolute dead weight in a fair few circumstances thanks to its Speed and the dependancy on Sucker Punch.
2) Hariyama is not on par with Virizion, Volcarona, Swampert, Mega Metagross, and Garchomp. It cannot function outside TR. Amazingly strong CC is cool, and movepool is nice, but the meta really hates on it right now. Do drop it. Much like Machamp, it has pretty much one niche, but Scrafty puts a lot of fog over Hariyama. B-, maybe C+ if you're feeling harsh. PLus, let's think of every common redirector: Clefairy, Clefable, Amoonguss, Togekiss, and Volcarona make Hariyama nearly useless.
tl;dr: Azumarill up, Bisharp and Hariyama down. Cress I don't really care either way, as long it stays above B+.