The lighter and faster the action the better for me. I'm not a piano player. Never was. I'm an instrument emulator, and I feel that's the primary function of arranger keyboards. Many things simply cannot be done on fully-weighted heavy action keys, at least by me.
I generally make it a policy to never let piano players play my keyboards. I prefer to break them myself. It's the old mentality that "if I pound it harder, it will go louder".
In the words of one of my heroes, Waylan Jennings: "WRONG".
BTW, go ahead an Google Waylan and Wrong. It's a funny song.
DonM