Physical traits, speed, agility, explosiveness attributes of Top WRs (What's the formula?)

Hands: No 1, and nothing else is close. WR's have to catch the ball.

Physicality: WR's have to be strong, not easily knocked off their routes, and win most 50/50 battles. Small WR's can replace physicality with speed and elusiveness, but that's special and rare.

Smart: They have to know their QB, and show him where to put the ball.

All the rest is important, but down the list from the top 3 somewhat.