Glad to to see the fEarful cabs getting mentioned - I'm friends with Greenboy, the designer, and they are great cabs indeed. I've mentioned the AxeFx a few times on Talkbass and also on Greenboy's forum, and I think that his cabs would be a great matchup for a lot of the folks that are going the FRFR route. I think the bass players who use his cabs would also embrace the Axe if it had more bass amps - a lot of them are really into experimenting with different tones, effects, EQ, etc., and would probably enjoy the depth of the unit. The cool thing is that you should be able to run cab sims and get a very accurate response similar to the PA or studio monitors, so there's a lot of options there. They will pretty much crush all the powered stuff out there in total output and low end. They would also sound great for bass without the cab sims of course, and likely for clean guitar. Now if you're going for overdriven guitar tones, the cab sims are a must.
The Bergantino falls on the other end of the spectrum, and I find it cool that it sounds great for guitar and bass without cab sims - the stock response and tonality are very musical and might appeal to a lot of folks who go a more conventional route. Not much heavier than a regular 412, a heck of a lot easier to move, better dispersion and form factor, and with some big power, it will bury a full stack or two.... it's great to have options!