I am guessing you are newer to this hobby? The YS 120 will swing any of the props listed under the DLE 20, and likely with a bit more authority
Claiming that the 20 has more power and will swing a much larger prop is complete non sense. Honestly its not even worth debating. Please dont throw up the HP figures, as they are completely different from engine designs and do not reflect actual prop swinging authority and thrust achieved.