The question asked for this raffle seems so simple, but it is not! dCity in all not a game for any random player, it needs a lot of calculation to build a profitable city which could fetch an attractive ROI. Each card in the dCity has its own significance and sometimes changes its significance with new dCity updates.
The card which I think the best is APPARTMENT! It is like a all weather card, no matter what new update comes in the game it will never be insignificant. As dCity grows you need more APARTMENT to increase your population. It comes with pure population which helps to activate other cards which has workers requirement.