It's like the cub polycub dilemma.

They will both earn you money but which one is the way to go?

I think that there is a better SPS return on holding Dec in its monetary from.

For me though I want to compete at champion and need maxed cards to do it. I also do a lot of rentals with my cards when they are not in use and make income from that side which might give a better return than the airdrop.

I couldn't say really but the easiest way to get more money is to just hold DEC and enjoy the airdrop for now.