Sacred Haven of Debauchery

Not all stats were increased by +5, but at least +2 and +3 were for all, except for luck, of course.

But it needs to be +5! Moreover, hit points depend on stamina and levels, but increasing stamina will only increase hit points for subsequent levels.

Good thing I didn't play it.

Well, there are mods for an alternative progression system. Besides, Morrowind is awesome, despite its poor role-playing system. As for Oblivion, you can skip it; only the Dark Brotherhood, Shivering Isles, and possibly the Thieves Guild storylines are worth playing.