Dangit, how did that first one send without me hitting post? Whatever.
MKII better than Victory, here is why:
Ok, maybe "better than" is the wrong wording and I should use "a direct counter to" instead. Of course since the two don't exist in a vacuum, other things can balance the scales.
The issue is that maneuverability move of three to more-or-less outrun bombers, and two yaw to be able to literally run circles around a Victory. Just like Corvette said, from experience, at far range the Vics front or side arcs (just 2-3 red ussually) will to an amount of damage every turn that the MKII can just deal with in defense tokens or engineering since it's mostly shields. In order to do this damage every turn, you need to be using a maneuver order just to turn fast enough.
Meanwhile the MKII+EAmod gets to broadside every turn (4 red), and that ends up being damage the Victory cant sustain, because it has only one defense token that actually mitigates damage, which get's targeted by any accuracies, and you cant repair enough, because your orders are tied up turning ever turn...
Basically, in a one to one comparison, the MKII is better.
They have equal heath, the the MKII has it in sheilds, which are easier to repair/redirect.
They have similar firepower, with the Victory have in advantage on paper, but not in practice due to the MKII having it on two sides and also below...
Here is where the similarities end.
The MKII is just faster and more maneuverable to make better use of it to put its dice whereas the Victory has to overcome a yaw of 1 and one good firing arc.
The MKII has better diversity of defense token and can take ECM to use them.
The Victory has one brace and cant take ECM, need I elaborate on that...
And to top it off, they are almost identical in points but the MKII are marginally cheaper.