Not sure why you'd compare Tales and Disgaea, they're entirely different games. It's like comparing SC2 and Civilization or something. Sure they're both RPG, but the Tales series is most well known for its action combat, stringing combos together and beating bosses by skill as much as by stats. On the other hand, Disgaea is a tactical RPG, it uses mostly grid based and turn based combat(obviously not rigid rules here depends on the title and stuff), which is the entire opposite style.
Looks like drunk posting to me, especially the double post part.