#1
Here are some qualities should in best opener in the world

The use of appropriate ball pressure to come up with winning strategies and the chance to play against the modern ball pressure.
Strong technique and fast scoring.
Consistency across conditions and formats.
Solid defensive technique: Crucial against the new ball, even more so in the longer format of the game – Test cricket.
Sound footwork: Aids when playing against swing, seams as well as the bounce.
Range of shots: The testimonial of being able to rotate the strike and punish bad balls especially in the one day/limited over's cricket.