Morkus from Orkus
That's not clerics in general. We are discussing classes here, not subclasses. For example, I wouldn't have an issue with an Eldritch Knight or Arcane Trickster being as good as the best wizard. Joe typical cleric should be able to be as good as it gets without having to go with knowledge.Acolyte Rogues are not better than the best clerics at religion. They are equal.
Knowledge clerics are the best clerics at the religion skill and get:
BLESSINGS OF KNOWLEDGE
At 1st level, you learn two languages of your choice. You also become proficient in your choice of two of the following skills: Arcana, History, Nature, or Religion.
Your proficiency bonus is doubled for any ability check you make that uses either of those skills.
So add knowledge clerics to those potential top tier arcana experts who could theoretically hit higher DCs than straight 5e wizards.
Those of you familiar with 2e specialty priests may be having flashbacks.