I'm not sure how helpful a thread like this is. Why is it important to share a list of gear that you use? Why should anyone care?
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But a list of what gear people are using, in isolation, isn't (or shouldn't be) of any real interest. It just strikes me as idle boasting.
Your stance held water back in the film era when a camera body was a light-tight box, everyone could load the same film into their cameras and the main difference were the lenses. Back then it was primarily Canon v. Nikon which focused on lens image quality, autofocus speed/accuracy, and flash capabilities. Those were also the only two 35mm SLR brands where one could easily rent exotic lenses (e.g., 600mm/f4 bazooka).
Today, dSLRs are fading as digital photography moves to mirrorless bodies which means retrofocus lens designs are giving way to smaller lens that have fewer optical design compromises. Go ahead and look up a 35mm film lenses around 50mm/f1.4 for rangefinders (like a Leica) and an SLR (Canon EOS). The latter are enormous.
Far more important is the digital sensor. Today, photographers aren't loading Fujichrome Velvia 50, Kodachrome 25 or some ISO 800 print film in all of their camera bodies whether it be a $120 P&S or a $1000 pro-caliber SLR. Each digital camera body has a unique sensor.
Back in the late Nineties, I could load up rolls of Velvia in A.) Contax 35mm SLR, B.) Contax G2 35mm rangefinder, and C.) Yashica T4 Super, all of which used Zeiss lenses. The image recording medium was the same, the main difference was the lenses. Light falloff, vignetting, chromatic aberration, distortion around the edges. The rangefinder's lenses had the best optical performance.
Digital photography has changed all of that.
It's no longer Canon v. Nikon. Sony crushed the competition with their superior sensors about five years ago which is why AP news photographers have mostly moved to this platform. Add the need for video recording and Sony's long broadcast video experience (e.g., Betacam) is another advantage.
Superior sensors are particularly important in low-light situations.
If all of your photography is done on tripod then perhaps camera brand doesn't matter but that's no longer the case.