What are your favorite or goto playstyles? Spellsword seemed to take off after Skyrim made spells take up hands, but I could never get into that. Pure mage and pure fighter are better for me, though I did heal as a typical one-hander. For Oblivion, I was magic monk punching bitches with my fists in close combat and frying them when they fled. Morrowind same as Skyrim.
Illusion, Mysticism, Conjuration are the funnest schools of magic to play around with. The rest are necessary but pretty barebone as far as potential. One-hander with shield beat out two-handed and dual-wielding because of practicality for me.