Kneeboards like a lot of other flying stuff is pretty much Personal choice. For me over the last 45 years I have always had one of the Military ones. I see them all over the place for a ridiculous price and made of metal. Mine is Plastic,made on a Military contract. I got it at Sportys for probably $5 less than they charge now and I have had THIS one for at least 20 years. Its my recommendation.
Deluxe Lighted Kneeboard | Aviation Kneeboards | Flight Bags, Kneeboards - from Sporty's Pilot Shop