From a pure conceptual perspective, which is the better "Gimmick controller", Wii U Gamepad, or Joy-Con?

[TheMisterManGuy]

Veknoid_Outcast said:
In terms of versatility, accessibility, and comfort, Joy-Con is your winner. In terms of gameplay possibilities, the GamePad, with its asymmetrical multiplayer opportunities, is the more interesting device.

Side note: You can technically recreate the asymmetrical multiplayer concept on Switch using local Wireless. One Switch stays docked, while the other is used in Handheld mode.