I watched both vids on Humongous and ED-209 (from the original film) and timed both, to see which would
Ed-209 has attacked anywhere from 12 to 24 seconds, while Humongous takes 23. If Ed-209 is sent on the attack like he was when Dick Jones sicced him on Robocop, then Ed-209 has a very good chance of winning this fight. However, if it is working the way it did
We also have to remember that Ed-209's feet could get messed up by the blades that pop up behind it during this fight. If it backs up, it could potentially trip and fall, going squirrelly while Humongous brings his axe down.
That is, unless it was engaging in combat like Dick Jones had it do when Robocop tried to arrest him. Then Humongous would get peppered.
However, in most cases, the Ed-209 would warn a foe to disarm or back off long before firing, and Humongous would still, in that case