Very dumbed down yet simple and effective AND balanced.
All races will have their XP boost in one area like they already do, light armour, two-handed weapons, etc.
All races will have on main resource, 10% Health or 10% Stamina or 10% Magicka based on the race.
All races will have a resource help, like 10% Regen on here, 5% cost reduction on there or whatever values are more balanced.
All races will have their special, such as Dunmer Resist to Fire + Increases Spell Damage with Fire Effects.