Only you can decide which one you want the most, whether that's based on the condition of the card or your own personal preference regarding which character or figure you like or want most.
However, since you're asking for our opinions, I'll give you mine. The Lando is the rarer, the more expensive and more desirable figure, however the card looks somewhat faded in addition to having the small sticker pull you mentioned. The Romba by contrast has a slight crease, but the card looks a lot less faded. The vibrancy of the cardback colours is of personal importance to me, so if I had to choose my favourite to own between these two cards, I'd probably pick the Romba.
I repeat however, the choice can only really be yours. Good luck in your decision