So do you mean there being unique premade spells, or if I go and make a spell completely my own other NPC's can then spawn with it too?
If the first, that was never a problem with spellmaking, just laziness on Bethesda's part. Like people who complain about how there was almost no difference between fire, frost, and shock damage, but then assume its because of spellmaking and not because Bethesda didn't have a little more creativity in their design.
If the latter, then I disagree completely. Whats the point of leveling if every other character gets stronger too? That was the worst part of Oblivion, it ruined character progression.
lets put it this way. if i as a new wizard can figure out how to make a spell that does 300 drain health damage and weakness to magic effects and some fire and frost damage thrown in as well that kills everything in one shot, why wouldnt the archmage or the other mages who have been messing around with spells their entire lives be able to figure that out as well.
to answer your question, if spellmaking is in then the very powerful mages should get those same kinds of spells. but how long before people get sick of being instakilled by skyrims top mages. i want my npcs to be more than just easy targets to slaughter wholesale. i want them to have access to the same power attacks i have and the same spells i have etc. where is it written that an npc that is the same level as my character is some how forbidden the same goodies that i get. it detracts from the overall gameworld.
i forgot which mod added them but it added health and magicka potions to npcs, not alot but around three or four per npcs. it was a big improvement becuase prior to that unless they had had a healing spell in their inventory unlike me they never used potions. that mod made a big improvement in my view.
the only thing that should be unique to my character are things like dragon shouts in skyrim, fingers of the mountain type quest spells like in oblivion and resist disease and immortality like the nerevarine got in morrowind, once again quest related.
oblivions problem with level scaling wasnt the archamage being a high level like you......in fact he should be the highest leve. hes the archmage. the problem was that every bandit and goblin was the same level.