I guess I'd have to ask what's meant by "best"
All the listed cards would be good choices, and there would be a bunch of others depending on stuff like age, what team you follow and a bunch of other stuff.
I'll pick the Bird/Erving/Johnson card, For me it's hard to beat the combination of the main players in the Celtics/Lakers rivalry plus one of my favorite players.
I might stretch to the 92 fleer Darryl Dawkins signed insert. Another favorite, if only for the backboard smashing.
But If I was offered any one of the cards on the list for free? I'd take the Mikan. It's got a lot going for it, and not a lot of downside.
Steve B