Looking at the dyno, the ACE does appear to have a 15 ft lbs difference around 3250 rpm. It is hard to tell exactly because some of the ACE's line is missing, but I would guess the ACE has an average of about 10 ft lbs over the JDL between 3200-4200 rpm.
For a track or auto-x car, this probably makes very little difference because you would almost never be down in that range of the power band. The increase in power past 7100 rpm is probably more valuable in that situation.
However, for a daily driver that is constantly launching from a standstill, the ACE torque advantage between 2300-4500 rpm may be a bit more crucial.
At least we have verified proof the ACE is a bit better down low and the JDL is a bit better up top.