The old Oblivion leveling was:
-You level up once your total major skills increase by 10 points (ie 6 Conjuration/4 Illusion or 2 Conjuration/ 2 Illusion/ 3 Restoration/ 3 Destruction)
-You pick 3 of your attributes to gain a bonus in whenever you level up
-The bonus amount for each attribute depends on how many skill points you gained in skills governed by it, varying from +1 (0 skill ups) to +5 (at least 10 skill ups)
So if you had acrobatics as a major skill and you quickly gained 10 skill ups when you started the game from just jumping around, your level up could look like:
Choose Three
+1 Strength
+1 Endurance
+5 Speed
+1 Agility
+1 Personality
+1 Intelligence
+1 Willpower
+1 Luck
So if you were a min/max monkey, you could play it so you'd get +15 attribute increases increases every time you leveled up (better than the new 12 points in the remaster) but you're avoiding those +7 worst case scenarios with the Remaster.
This whole thing lets you not have to go super meta-game bullshit to actually enjoy the game.