Since I have been following the Axe-FX, the most popular powered monitors/cabs for an FRFR rig have sort of followed this progression:
Atomic Reactor FR->Verve FBT 12ma->QSC K12->RCF NX 12-sma->Atomic CLR
There are many others of course, but those seem to be the most discussed. Some people like the 10" speaker cabs a lot for the weight, but I have always preferred 12" speakers myself. I am currently waiting to replace my Verves with Atomic CLR's.
Yes, this list is about right for FRFR in what I would call the "general use" category. I.e. playing at home, rehearsal, or either backline or monitor at a gig.
Some use the smaller 10" and 8" monitors because they have enough low-end for guitar but more because of (a) weight; (b) wider dispersion pattern on the horn driver.
The RCF and CLR have co-axial high-frequency drivers; better sound from this type of design is one reason why they are supplanting the QSC. However, the QSC (and similar offerings from JBL, EV, Yamaha, etc.) are readily available and not too expensive.
If you're going to use it only for recording, studio monitors are fine but just aren't going to move the kind of air that even a compact PA speaker like the QSC can.
The other FRFR option is to simply plug into a correctly set up, quality PA system, but that's overkill for a simple setup.
Some people prefer to use separate power amps (like the Matrix) and unpowered FRFR cabs. And others still bypass the FRFR solution and use a power amp (again, Matrix, Crown, QSC, what have you) and run directly into a guitar cabinet. In that case you will not want a cab block in the Axe FX II patch chain.
Dave