Areas where OpenEmulator is better: GPU-shader CRT emulation that looks almost just like a real CRT (I have real monochrome and color CRTs for my Apple IIe, and

Areas where OpenEmulator is better: GPU-shader CRT emulation that looks almost just like a real CRT (I have real monochrome and color CRTs for my Apple IIe, and did a lot of comparisons while implementing double hires support for OpenEmulator). Also, better disk emulation that (because of a quirk of how it works) can handle some copy-protect schemes better. Areas where MAME is better: cross-platform, and you can set breakpoints and debug etc. More devices. Probably more positives, but I'm not super familiar with it. I mostly used it to compare bugs while working on https://github.com/zellyn/a2audit https://github.com/zellyn/a2audit :-)