A stall implies that the wing is SUPPOSED to be flying. A torque roll... by definition, the wing isn't flying... its hanging like a dead weight from the fuselage and therefore, from the prop.

How do you stall one torque roll more than another?

No one who knows anything about aerobatics would call it anything other than a Torque roll... adding "high stall" proves lack of knowledge. trying to say its valid to ad that... proves your lack of knowledge.