head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.

Optimization · Mind & Math
Console-first RTS translating Halo's factions into streamlined base-and-army battles.

Optimization · Pure Optimization
A turn-based tactics game testing positioning and unit planning on a combat grid.
Halo Wars leans Optimization (Mind & Math); Transformers: Battlegrounds leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Halo Wars
Controller macro is deliberately light
Transformers: Battlegrounds
Grid combat has no twitch demand
Halo Wars leans a little harder on reads, though the gap is small.
Halo Wars
Versus humans, build choices are mindgames
Transformers: Battlegrounds
Multiplayer requires anticipating opponent unit moves
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Halo Wars
Scouting hides enemy composition early
Transformers: Battlegrounds
Some hit and ability randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Halo Wars
Build orders and counter-unit economy
Transformers: Battlegrounds
Positioning, ability use and turn planning win battles
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.