500 Toads
Explorer
so the message after i actually clarified what i meant - it's not really about how pcs and npcs are built, it's about how the system functions. i don't really care if pcs and npcs are built the same (i actually prefer if they're not - building pcs takes a while, i don't need that level of depth in even a bbeg), but i WOULD like to be able to tell what cr or monster level a pc of any given class and level is without having to spend 10 minutes dissecting the monster values chart.
I'm inclined to think that if you look at D&D 5E's official options -- at least, if you include the 2014 material, and assuming that feats and multiclassing are both allowed (technically optional, at least in 2014) -- there's so much potential variance in power level at higher levels that you can't have an easy CR-vs-level system that is also quite reliable, no matter how you build NPCs. The math isn't tight.
For instance, the gap between a high-level divination or chronurgist wizard or a hexblade-dipped paladin, versus a battlerager barbarian of equal level, is going to be quite significant. There's a lot of options that are just not on par with other options, even if we ignore the more outlandish and impractical multiclassing choices that are possibly legal.






