I've never heard the Hegel, but I do have the Peachtree Grand X-1, just a little up the food chain from the Nova. I'd like to check out the Hegel someday, just out of curiosity, because everyone seems to love them (this volume issue notwithstanding). Thinking about it objectively, I do think that the Hegel products seem to have more panache in the marketplace...people associate them as higher-end than Peachtree stuff, so maybe there's a bit of that feeling of not wanting to "settle" for a Peachtree with some buyers. It took me a while to finally pull the trigger on mine, to get over that feeling of "is it good enough?"
In my case, my main system is an Audio Research VSi55 into a pair of Proac D2 monitors, which sounds great. I got the Peachtree so I'd have something in the summer months when I didn't want to deal with tube heat here in Phoenix. That the Peachtree is just as musically pleasing as the Audio Research integrated, and I can swap them out without a thought, is the best compliment I can pay it.
I say this not to sell you on the Peachtree - you should buy what makes you happiest, since we're talking about a nice chunk of money - but instead to suggest giving the Peachtree a good listen without holding its affordability against it, just in case you've got some "I don't want to settle" doubts like I had.