I agree. I use a single EV ZLX-12P (sometimes two) as my 'backline' at rehearsal and in small clubs, and they sound great. They're a little bass heavy at low volumes, so you definitely have to dial in band presets at band volume. Once you get them up at band volume, they open up. I leave the EQ (on the EV speaker) completely flat, run it's volume at 0 db, and adjust volume with the output knob on the Axe-FX III. There are some other settings on that ZLX-12P as well; I'm not at home, but I want to say I run it at 'Monitor' and 'Live'.
Here's a video of my band doing a Fastway song at a club a few weeks ago. I had a ZLX-12P behind me for stage volume, and the rest was the house PA. Best band sound I've ever had. I think I had high cut at around 6800 and low cut around 125 or 130. My cab block was a mix of 4 different stock cabs. The cab is very important - it has a huge impact on the sound of a preset.
By the way, I was also using the pitch block to pitch down a half step (and my guitar was already at E flat). That Fastway stuff is pretty high for a singer!