What could be better than a handgun? Well common logic dictates that a rifle, shotgun, machine gun, sub-machine gun, sniper rifle or assault rifle would fit that bill. But as typical with the beliefs firmly held by the people I'm trying to piss off there is no common logic involved. Therefore we have another option. Instead of wielding one handgun, why not wield two? Makes sense right? Double the gun, double the fun. After all aren't handguns designed to be used with one hand? Well it all comes crashing down because no, handguns are usually designed to be used with both hands. They can usually be used one-handed in a pinch if your other hand is preoccupied holding a rock or jerking off or something, but they're still far better when controlled by both hands.
Guns in general have a lot more recoil than people tend to think. Blazing away with one can be a workout, shooting up a storm with two is near impossible. You can always fire slower, but then where is the advantage of getting two in the first place? One could argue that since you have two guns you have double the magazine capacity. But then why not just use one gun with both hands and use the other when the first runs out? Or failing that why not reload like a normal person. After all, two guns take more than twice as long to reload. The other problem with shooting two handguns at the same time is accuracy. Good marksmanship depends on being able to focus on your target and where your bullets are going, to do this you must use the iron sights on your gun. When you have two in your hands, you can only focus on one set of sights at a time, not both.
So now you're back with shooting one gun and having the other taking up your other hand for no reason. Alternatively you can just guess where the bullet is going to go and just shoot by feel. But only idiots do that. It's tough enough to guess approximately where one gun is going to shoot when you're not using the sights, but two guns as we all know can shoot into two totally different directions so you have to constantly be guessing where both of them will be shooting. Sounds easy enough, but it's near impossible to do beyond about 10 feet. You could put laser sights on your guns, but then you'd just constantly have to search for two different laser dots moving about independently of each other, both only remotely hinting at where the bullet can go. It's all just a huge headfuck. The most you could accomplish by shooting pistols akimbo is a whole lot of ammo wasted without hitting anything you want to hit and both your arms way too tired way too fast.
Contrary to popular belief dual-wielding SMGs is no easier or more effective. Especially sub-compact ones like Micro UZIs. With two SMGs not only do you now have two guns that are heavier and even less accurate. Now they're fully-automatic. Therefore the recoil problems you had before are multiplied. Your arms are practically going to fall off. And it doesn't stop there either. Some believe that you can use Magnums, Assault Rifles, MGs and even sawn-off shotguns with both hands. (Yeah, GTA:SA). The former two you can hardly hold one-handed. It's no easier with swords either, proper swordsmanship depends on strength and accuracy with the blade. Doing so greatly depends on using the sword with both hands. Dividing your strength and attention between two doesn't help you very much. It does work somewhat well with special-designed light daggers, but that's about it.
Unless you're an ancient Greek god (and you're not) there's no way you can use a sword the size of your head, let alone two. I simply don't see a reason why anyone would use two weapons at the same time. Perhaps they're trying to show off, but that would just get them killed. In video games it's easy enough to do because a game can always hold any number of weapons on target. In real life, not so easy.
