Just gonna quote Sirlin because I agree completely with what he says about execution.
“I agree completely that the different motions chosen for moves gives another layer of things to think about and that that kind of variety is interesting relative to a game that has no such variety. The thing is, "execution" in general has the opposite effect and it reduces strategy, relatively speaking. The more a game is about the difficulty of making your character do what you want to do, the necessarily less it is about strategy (that is, making good decisions).
This is why it's not a good idea to make special moves
really hard to do. Make them take some *time* so some prediction is needed (even a few frames of prediction), yeah that's great. Make them start at a particular place on the joystick, such as a reverse dragon punch, and that affects how they're used, right. But to have some tiny input window to make them hard to do even when you have decided you want to do them, that's taking away emphasis on strategy. Making a game where the command to throw is secretly an option select tricky thing that you want to do basically always is another way to put more weight on dexterity that necessarily reduces strategy. Choosing commands that overlap too much (for example, ST Cammy's hooligan throw and spinning knuckle) puts more emphasis on dexterity than the decision of choosing the right move. So to increase strategy slightly, it's better to make those not overlap.
We should really be striving to reduce execution requirements as much as possible while keeping the nature of the game intact. That is, making all dragon punches a single button press would reduce execution, but it would also actually ruin a bunch of strategy stuff by making them too reactive and not predictive enough, so we shouldn't do that. That's not a case where reducing execution helps, so I'm not talking about things like that. I am talking about sequences or moves that are hard apart from any strategic consideration. Like Sakura having 1-frame links as a critical thing, instead of being a character anyone could play. (You don't even need to change the power level of the character or reduce any strategy here, it's just a matter of being more inclusive as to how many players get to participate in that strategy.)
I know there's a lot of execution fetishism going around, and that's unfortunate for a genre that many would like to point to as a strategy genre that happens to have a dexterity requirement to play. Rasing the dexterity requirement above the minimum needed to make it all work just subtracts from the importance of strategy while excluding people. I'd like to see more love for an inclusive approach, as that restores more power to good decisions while inviting even more players to participate in those decisions.“
http://sirlingames.squarespace.com/blog/2012/7/16/execution-in-fighting-games.html
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