Just for the record, that's absurd reasoning; both are equally "preposterous." I also doubt people actually submit their moves to an impartial judge when battling face-to-face. Ridiculousness is completely subjective; capability is the only basis upon which such practices can be evaluated. I argue that using exact, non-rounded percentages (but not showing the exact HP) would be the most beneficial to competitiveness. As long as damage calculation is accepted and allowed, there is no argument that imprecision can be any beneficial to decision-making and, by proxy, player skill: it just forces the player to make a complete guess from a range of possible hitpoint values. If the goal is to truly simulate the game or reduce the amount of "trivial accounting" performed within games, then I think a further step should be taken, and pixels/percentages should be eliminated completely. Users shouldn't be spoon-fed this information; they should actually be forced to estimate or directly measure the length of HP bars and compute HP accordingly.