Nail said:CR is not affected by ability scores. Period.
Ysgarran said:Experience tells me that doesn't really make sense not to take abiltity scores into account for CRs.
Sure. That's because you've changed the variables. So fix it!Ysgarran said:In my home campaign I was very generous in the stat scores of the characters. If I go by normal CR rules and default monsters they routinely mop the floor with the default monsters and CRs that would take out a party with 'average' ability scores.
Ysgarran said:As you mention the second level half-fiend hobgoblin would be a very tough fight for a CR 3 creature, especially if you went with a 28 point buy.
Exactly.Sigma said:MM, pg 290, second paragraph under the heading Ability Score Arrays:
"Monsters who improve by adding a template, and monsters who improve by increasing their hit die, may use any of the three arrays (standard, nonelite, or elite). Any monster unique enough to be improved could easily be considered elite."
So, not only do ability scores not affect CR, but giving an elite array when applying a template is the typical situation where you would do so.