Haven't used a Protool.
The other tools. How deep to you like to cut your mortise beyond the tenon length? 1/4", 1/2", ?
Both tools have to plunge with a circular finish (chain mortisers). Mafell cuts against the timber. Makita cuts with the timber. I guess some people mortise where it does not require any chisel "cleaning", others prefer to do so. If you like to use the minimum depth, it seems like the Makita works most efficient because you only have to clean up the ends. Mafell, the opposite.
Makita requires, more set up time and transition time. Mafell does not. Makita you can cut a 45 if savy, (someone showed me that)
Damn it, Protools Mo! Sorry Tyson.