eu4 is many things (many bloated things) but it is not a wargame
most people think the mana mechanic is gamey and stupid. some 'people' do like "number go up" (((gameplay))) and click to win mission script railroad to FunTown but the thinking man likes roleplay, complex interactions between multiple systems, and manipulating these systems to generate the outcome desirable to him.
EU5 will be better because it creates dynamic systems out of benign mana points, introduces population and better trade mechanics, and hopefully reduces the click to win railroaded missions which change the game into a visual novel.
The thinking man enjoys playing games and making things happen, the mouth breathing consoomer enjoys watching things happen.
The thinking man will prefer EU5 and the mouth breather would be better off watching Master and Commander again