Nebulous
Legend
If you want more realism with your combat, and also fiddle with the 5' rule, then check out the Game of Thrones combat system. AoO are completely removed, and replaced by detailed called shots. You can't just take a 5' step to shoot a bow, you actually have to withdraw up to your base move. Armor offers damage reduction, shields offer a huge defense bonus, and you have to take special feats to get the bonus for Str to weapon damage (but you can also take a feat to offer bonus from every other ability score to attack and defense).
The system is very detailed, including Shock Value (very very low massive damage threshhold) severe wounds, fatigue, and all the other stuff that makes real world combat relatively unpleasant.
If that's your bag. From what i've seen, and experienced, the visceral, loose DnD combat is more epic, free wheeling, and fun from the point of view that you can fight a lot because it's fun. Not debilitating and likely fatal off the bat.
The system is very detailed, including Shock Value (very very low massive damage threshhold) severe wounds, fatigue, and all the other stuff that makes real world combat relatively unpleasant.
If that's your bag. From what i've seen, and experienced, the visceral, loose DnD combat is more epic, free wheeling, and fun from the point of view that you can fight a lot because it's fun. Not debilitating and likely fatal off the bat.