Ok, I replace the preamp tubes in the JP2c just to see if that makes much of a difference. It did not. Amp still sounds the same but with a bit less noise floor. (I am using the JJ E83CC tubes this time as I felt they sounded really good in the Mark VII but only have one set to use
). Anyways, when you consider the overall tone of the three amps, JP2C, Badlander, Mark VII. The JP2C has more depth to it, darker, more lower midrange and bottom end. Badlander sits in the middle and the Mark VII has more brightness but yet balanced. Gain structures have the same characteristics but I feel the Mark VII has a bit more gain or drive compared to the other two.
Comparing the clean channel, JP2C has a warm tone, similar to the badlander if you dial back on the gain control and even the Mark VII fat is on the same level, again keeping the gain out of the clipping range. The Clean mode (less push than the FAT) is more open and airy of sorts. Less coloring of the tone and is also just as pleasant to listen too. Clean on the BAD is more compressed as it will be considering it gets pressed into a DC coupled cathode follower tone stack driver (does not make use of the fender circuit like the Mark VII or JP2C which is part of its heritage in a way).
I always felt that the JP2C would get lost in the mix due to its darker overtones. I know for a fact the Badlander does not get lost in the mix as we use that when the group is together, I am playing drums so both the bass rig and guitar rig are facing me in the small room.
I was curious how close the crunch on the Mark VII would get to the CH2 on the JP2C. Surprisingly close, sine it is very similar to the crunch on the BAD.
Perhaps the Mark VII is much closer to a Mark III as I recall many saying it was brighter than a IIC+. Not in a bad way, just has more cut in the mix. I had used the Mark III for many years in a band setting as the only guitarist and did not have any issue cutting through. That was just with a combo amp which had the EVM12L Black Shadow speaker.
As for the VII and IV modes, they are both aggressive, more so than the JP2C with the gain pulled. Perhaps the warmer character of the JP2C or the Badlander would be a benefit for all single coil pickups especially when it comes to the bridge pickup.
That is where it becomes most important take the opportunity to try them yourself with the guitar of your choice. One of the three may actually stand out more than the other two. Sure, just a quick play through may not be enough but it will give you a better idea how it compares to amps you are more familiar with. Hard to say what is out there in inventory to try out. Most of the places I buy Mesa gear from keep selling out.
To be honest, I used to hate V30 speakers. Now I sort of like them. My first experience was with the 70W rated version that came in an OS Recto 412 cab, 1999-2000 year. Replaced them with EVM12L Black Lable speakers. Still the V30 sounded better with the RA100 so I got another 412 (in 2014) and that was totally different. the 60W-V30 versions are not voiced the same way as the 70W V30. That is what is in my Silver Jubilee cab but with a Marshall label on them. Works for the 2555x but not so great with any of the Mesa amps. Tried to run the JP2C through the Marshall cab, it was flubby as all heck. That was the issue I had with the first OS Recto 412 cab. The EV speakers fixed that problem. The newer Mesa cabs with the 60W V30 are much better with the Mesa amps. Even the Marshall sounded great through those speakers.