I think the Ontario Cutlass has more power to the chop. I like both, if the Ontario had a much better handle, material and ergonomics, then it would be a much better blade.
Also, with the Ontario, you will need to improve the edge, cause there is little to no edge.
Junglas comes sharp, has a great handle, and an excellent sheath, it is well worth it. If, on the other hand, you can mod the handle, convex the edge, and obtain a good sheath, then you have a great chopper.
I like both, and wanted a thicker, longer Junglas, with the fatter tip, so...the Culberson Bolok