Ok, I'll bite! What is your reasoning? I like palm strikes better than punches for very specific reasons that I believe to be universally applicable. But not always the same part of the palm. For starters using that little bony bit on the bottom opposite thumb side (I believe it's called the pisiform bone), can put more force per square inch into the target and do more damage than a fist, with much less risk of injury to ones self.
An inquisitive nature! I like it.
This may be a bit winded, but im going to start with a very broad statement, then ill explain myself a bit. Knuckles are hard things, parts of the head and neck dont like being battered, and at close range blocking is impossible (with my definition of close range being body to body). At that same range, straight line punches are practically impossible as well. There are layers of redundancy - Knuckles miss, forearm hits. Theres a long winded version of that, but ill save it for later. Basically, your knuckles can be used to hit at angles the rest of your arm really cant, and have alot of incidental failsafes. Your knuckles protrude slightly from your fist, meaning that you need to actually miss with your knuckles in order to smack in your fingers. With an open hand of any sort, lets take a palm heel, if you miss, you can sprain your wrist by forcing it back, you can smack in the underside of your metacarpals, you can smack in your fingers if you have them bent, you can smack in your fingers if you have them extended, you can take your own thumb out, and you can end up with more of a push than a strike if youre too weak to do it 'properly'. Knuckles are hard things, and dont need as much effort, even if for some people they get more force out of a well done palm heel. If you have a desk, slowly (without accelerating. just a steady slow pace) stand up and hit it with your palm. With the exact same effort and speed, hit it with your knuckles. You get the result easier, and you dont need to unlearn the idea of relying on punches to do it. So, im not arguing potential power. Im bringing up how much power you can generate consistently.
Now, ive said palm heel, as in a straight thrust, compared with a straight line punch. Now, if we switch to a hooking shape. With your knuckles, you just bend your arm and punch. With a palm heel, there are, off the top of my head, three different ways you can position your hand, and each one will be better suited to a different range. With a punch, you just bend your arm as needed to get the right range. With a palm heel, you cant do a palm hook fingertips facing up or out at body to body range, but you can with your fingers facing toward you. Try it yourself! Just aim for something about 10cm in front of your face. Now, the fingers vertical tends to be ok if theres no obstacles between you and the target. The fingers outward is the most instinctive, but it only works at medium range. So, you basically have three different palm hooks for three different ranges, as opposed to one punch. With the straight line strike, that issue isnt as present. Now with uppercuts, the knuckles can uppercut in about three different ways (bolo, straight up, or a kind up palm vertical straight punch). The palm can hit straight up, or it wont really do anything. At first you seem to have the reverse problem, except that it isnt three punches. Its the same punch done from three different angles. With the palm heel, if you mess up the angle its a waste. With the punch, it just gets a different label stuck on it.
Ridgehands, axe hands, and fingertips all work, but they work with alot more caveats. With punching, its hard to mess up. Even if you break your knuckles, you could just as easily break your wrist, break your fingers, smack in the underside of your metacarpals, or not have enough speed for the surface to become hard enough to generate power.
I guess my point is that punching is more dependable, despite all of the things that can go wrong with it. If you make a mistake, the mistake just becomes a different way of doing the same thing. Throw a hook punch up close, go too far, and its a headlock. Throw a hook palm up close, go too far and you can grab their ear because your fingers stick out of your hand, or perhaps a handfull of their hair. Throw an uppercut and throw it wrong, and as long as it hits itll still do something. Swing a palm up and throw it wrong, and it wont do very much unless youre after a push.
Lastly, with a punch, all that changes is the angle you throw it. With open hands, youve got a plethora of hand formations and strike archetypes to go through.
Now ill praise palms briefly, so i dont sound like a complete douche, because im not putting them down. This is a praise of closed fists, not a critique of open hands. Forceful pushes can be a good thing, less range on your strikes can be a good thing, and theres nothing wrong with open hand work.
I agree with this for sure. It's refreshing to see a TKD guy say this! I would echo that there are objectively better ways to approach things regardless of ones personal attributes. Unless you have mastered everything else, kicking above the waste should not be bothered with. (unless its for fun / tournaments of course).
G
Aye.
Edited in PS: If im wrong about something here, tell me. I want to know. Of course its only my opinion that fists have benefits over open hands, im not trying to make it 'fact' or a 'single truth' or something silly like that. I explained my reasons specifically so that whether im right or wrong in that reasoning i can know why, not so i can defend the claim against all odds. You dont have to agree with the conclusion.
Edit 2: Case study. Hit the underside of your metacarpals into a solid wall at about 50% power.