head to head
vs
Half-Life 2: DeathmatchvsTom Clancy's Rainbow Six: Vegas
Half-Life 2: Deathmatch leans Execution (Pure Mechanics); Tom Clancy's Rainbow Six: Vegas leans Execution (Competitive PvP).
Half-Life 2: DeathmatchTom Clancy's Rainbow Six: Vegas
Axis by axis
Execution8 vs 7
Half-Life 2: Deathmatch leans harder on execution: Aim, movement and gravity-gun catches decide every duel
Reads5 vs 5
Even - both lean on reads about the same.
Variance2 vs 2
Even - both lean on variance about the same.
Optimization4 vs 5
Tom Clancy's Rainbow Six: Vegas leans harder on optimization: Room-entry planning and map knowledge are studyable
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.