Across 1,296 ranked games on patch 16.21 in Master and above, Viego mains win 49.8% of their games in the jungle.
Their most common build appears in 17.1% of those games and wins 59.3% of its 221 games.
It starts 
Mosstomper Seedling and 
World Atlas, completes 
Infinity Edge, 
Lord Dominik's Regards, 
The Collector and 
Hubris in that order, and takes 
Mercury's Treads.
Three other builds are played often enough in the jungle to be measured on their own.
In the jungle, Viego mains fare best against 
Talon (won 76.0% of 25 games), 
Lee Sin (won 63.0% of 46 games) and 
Graves (won 61.5% of 39 games).
Their hardest matchups, the champions that counter Viego, are 
Zyra (won 25.0% of 16 games), 
Nidalee (won 36.7% of 30 games) and 
Vi (won 31.3% of 16 games).