My stage rig tends to vary.. it is either my Gallien-Krueger MB200 on its own, or with an additional 1x10 or 1x12 or a 2x10 cab, or either a Hartke HA2000 cab with either 1 or 2 2x10 cabs or the 1x12 cab or a 1x15 cab... or a fender BXR Dual400 head with any cab combination... Or the big rack rig (8spc rack w. yamaha preamp, DBX163 comp, Digitech RDS1900 set for chorus, QSC GX5 power amp) with a Hartke 410XL and a Mesa/Boogie RoadReady 2x10.
However, any time when there's backline amps in the gig, or whenever I am unable/unwilling to bring my amps/cabs, I use a 3 spc rack with a wireless receiver, the In-ear monitor transmitter, and a Behringer digital preamp (V-amp bass pro). This way I can always rely on in-ears, shape a couple nice sounds on the preamp and feed it to both the PA and the in-ears if needed (sometimes the soundguy is nice enough as to provide me with a nice mix to the in-ears so I don't need to provide bass directly to my in-ears), and leave the extra oopmh to whatever they provide on stage, be it an amp or sidefill monitors. Period, I like my in-ears quite low in volume, so in the end I mix the somewhat isolated outside sound with a little bit of in-ears for definition. I can stand a 2-hours show quite comfortably this way.