This falls under the category of controller optimization in my books. For some, it boils down to what you're comfortable with.
For me, I think the comfortability and personal preference for controls are somewhat stupid concepts. You should find out essentially what is most effective as a setup regardless of how hard or uncomfortable it is to learn. Think about the endgame, once you've put in the time, you should have the best controller configuration possible. There is nothing that tap jump does that can't be solved by a more efficient layout. Simply set jump to a different button, turn tap jump off, and manually jump cancel for grabs or up-b-OoS. Now you don't have to deal with accidentally losing a second jump when trying to DI or for any reason.
If any of you buy into what I am saying and are looking for a controller layout scheme, I believe I have found the best layout without having to claw (which can be uncomfortable for many people's hands i.e., long term soreness and stress).
L -> Shield
R-> Attack (Dacus)
Z- Jump - use your right pointer finger (allows thumb to rest near C stick, B, or X for immediate use after jump) This is the most important part of the setup. The placement of jump on the shoulder of the controller allows use of jump with right pointer finger; and special, attack, grab, c-stick with your thumb. As jump is the most important button that will be pressed immediately before many other buttons, this is why it is placed on the shoulder of the controller.
Y--> Grab (jump cancel grab is inputting Z->Y)
X-> attack (the A button could just as easily be attack, this is a relic from a previous controller configuration, but it doesn't matter, the layout is optimized enough that there are spare buttons on the face… lol)
A--> I have this setup as taunt… why? Tauntcancells and footstools? not really, but you don't need all the buttons on the face of the G-cube controller. Feel free to change around the face buttons.
B-> Special (wavebouncing, b-reverse… all are very easy as the jump button (Z) can be pressed with your thumb hovering over B)
C-stick --> normal. Use this for aerials and smashes (for retreating fairs and approaching bairs)
Note-> I recommend removing your springs. It makes everything easier.
If anyone has any issues with this layout, or something they feel is better for a specific purpose go ahead and feel free to share. I've been playing with this layout for a long time now, and It is very efficient for doing absolutely anything and everything I know of in the game. (save for light shielding, which is not in the game yet)