Lickilicky for A+
In a nutshell, Lickilicky is the best cleric of PU, with extremely high HP and defenses for the tier. And due to Oblivious, nothing can prevent you from doing Wish or Heal Bell.
Another cool thing about Lickilicky is the fact that it doesn't let everything setup because of its 85 BS Atk, and access to an extensive movepool that include attacks like Knock Off, Dragon Tail, Body Slam, or even Power Whip ( You know, Shell Smashers )
Also, this isn't over, Lickilicky can do way more than that. As i said before, Lickilicky's movepool is extensive as hell, allowing it to be an effective setup sweeper with Swords Dance or Curse, it can even use a Choice Band effectively due to his access to one of the strongest moves ever: STAB Explosion.
Overall, Lickilicky is suitable in almost every team because of its versatility. To me, that's enough to make Lickilicky A+.
Solrock for B-
One of the best check of Tauros in the tier, access to a pretty sweet movepool, including rocks, Wisp, Recovery,Trick & Trick Room. STAB Stone Edge from this thing kinda hurts too, allowing it not to let everything set up, which is a nice advantage.