head to head
vs
HearthstonevsPokémon Showdown
Hearthstone leans Variance (Grand Arena); Pokémon Showdown leans Reads (Grand Arena).
HearthstonePokémon Showdown
Axis by axis
Execution1 vs 0
Hearthstone leans harder on execution: Clicks only, no mechanical skill
Reads6 vs 8
Pokémon Showdown leans harder on reads: Predicting switches and protects against a human is the win condition
Variance7 vs 6
Hearthstone leans harder on variance: Draw RNG and discover effects swing games
Optimization7 vs 8
Pokémon Showdown leans harder on optimization: Team building, damage calcs and matchup theory are deep and essential
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.