I've recently bought a Revolution 37, which I'm very happy with.
I've had an Origin for a few years, and liked it. I was planning to upgrade to an Edge, and even tried one when I had new string/cables put on the Origin, but the pandemic put paid to that plan. Fast forward to now, and I'd decided to try an Edge and Revolution side by side before deciding which to upgrade to. I was genuinely open-minded about which I'd come home with.
The sand-blasted anodised look of the Revolution is lovely - a sort of matt effect that makes it stand out in a sea of shiny. There are other differences between the Edge and Revolution that are far better described in Ben's video, but the decider for me, and the reason I now have a Revolution and not an Edge, is the draw-cycle. I don't know what Merlin have done with their clever cam/bow design, but the Revolution draw cycle feels dramatically different (and better!) to both the Edge and the Origin.
In a sentence, it feels lighter and smoother to draw the Revolution.
I shot the bow side by side with an Edge, and the Revolution "felt" like I was pulling less weight and was smooth throughout the draw. The Edge was also a smooth draw, but the draw seemed heavier through the cycle and it felt like it required more "oomfph" to start the draw than the Revolution.
Both Edge & Revolution have a better draw than the Origin and are noticeably better bows. Even though I was used to it, the Origin always had a fairly heavy-feeling draw... you kept pulling the weight until you hit the valley.
For me, the fatter grip on the Edge feels better than the Revolution. I've bulked-up the thinner Revolution grip with tennis tape... but honestly, that's about the only "win" for the Edge in a back to back comparison.
It's early days, but it's shooting straight after minimal tuning - basically just a spot of French tuning - and I'm loving the light/smooth draw.