head to head
Natural Selection 2vsOverwatch
Natural Selection 2 leans Execution (Grand Arena); Overwatch leans Execution (Grand Arena).
Natural Selection 2Overwatch
Axis by axis
Execution8 vs 8
Even - both lean on execution about the same.
Reads6 vs 7
Overwatch leans harder on reads: Ult tracking, flanks, and baiting human teams
Variance2 vs 2
Even - both lean on variance about the same.
Optimization6 vs 6
Even - both lean on optimization about the same.
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.

