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.

Execution · Competitive PvP
Artillery aim and turn planning against humans under wind and crate randomness.

Reads · Competitive PvP
Modern Worms with crafting and vehicles, keeping the classic turn-based destructible-terrain warfare.
Worms Battlegrounds leans Execution (Competitive PvP); Worms W.M.D leans Reads (Competitive PvP).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Worms Battlegrounds
Grenade arcs and ninja-rope control reward precise aim
Worms W.M.D
Shot arcs, rope swings and vehicle control demand precision
Worms W.M.D leans a little harder on reads, though the gap is small.
Worms Battlegrounds
Human opponents adapt positioning and bait retaliation
Worms W.M.D
Multiplayer turns hinge on out-guessing rival worm placement
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Worms Battlegrounds
Wind, crate drops and terrain destruction add chaos
Worms W.M.D
Wind, crates and random terrain reshape options
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Worms Battlegrounds
Weapon economy and turn order planning are solvable
Worms W.M.D
Crafting and weapon budgeting reward planned turns
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.