For pure load and power, the straight bar usually wins

Rope for squeeze, bar for power

Rope wins for end range tricep squeeze

Bar loads the triceps harder overall

Bar builds triceps strength best

Rope gives better tricep activation

Rope gives the triceps a stronger squeeze

Rope hits more tricep fibers overall

Bar loads the triceps more aggressively

Rope activates the triceps the most

Rope is top tier for tricep activation

Rope hits the triceps deepest