[quote=@vietmyke]
I figure a decent comparison would just be like a Gundam vs a grunt mobile suit. In a straight matchup the AUG armor outfights the MA 90% of the time, skill probably comes into account, and some rarer jumbo MA might be trouble, but generally they must rely on numbers or tactics to overcome an AUG team. 
[/quote]

@Senhara: This is exactly what I had in mind, mass-produced MAs don't stand up to a decent AUG on average.

As for speed, again, it's kind of hard to compare(especially since I'll admit my experience with older-gen Armored Core is less hands on then my experience with AC6).

Something like CATAPHRACT would probably have to be sort of a special attachment you can bring rather then something your AUG is constantly equipped with and would need some serious drawbacks to keep it from being too overwhelming to work with as a GM.