I have collected scorecards for over 25 years and have them in huge boxes in both my house and my mom's. (Sorry Mom.)
It depends on how you define "best".
For a private club, simplicity is best. No pictures, no map. Just the club logo on the front of a white sheet of cardstock, non-laminated so the pencil writes easily. There are literally hundreds of clubs whose cards are like this, including Augusta, Shinnecock Hills, Cypress Point, and Old Memorial. (Feel free to add your own to this list.)
If we are talking about a daily-fee or resort course, give me the map of the routing, glossy photo of one of their holes, and more. These usually are laminated, but I like it better when they aren't so you can write easily.