When it comes to video projectors (as with most things tech), the "Best" varies depending on how you'll use it. This is because projectors must inevitably make engineering trade-offs. I've owned a bunch of different high-end consumer projectors over the past several decades going back to RGB CRT tube models. IMHO, the most helpful answer I can give you is to point you to the key trade-offs so you can decide which is best for your unique mix of needs.<p>First, is the trade-off between brightness and contrast. Projectors perform best in light-controlled environments. Stick a blank piece of paper where you plan to put your screen and set the lighting to your normal viewing. That piece of white paper is the blackest black your projector will be able to create (baring using special non-white screens which have their own trade-offs). The bottom line, is if you don't have a suitable environment you need to go with a PJ able to throw a lot of lumens and the trade-off is poor contrast. I'm a huge PJ fan but honestly, in some environments some form of LCD or OLED screen is the best choice.<p>Next is how large your screen will be. The larger the screen the less light per inch a PJ can throw. Also remember that projectors have limits in how far the unit must be from the screen to throw a given size image. Many rooms don't have infinite flexibility in where you place the projector.<p>One counter-intuitive thing I'd suggest considering is whether a "4k" projector is really best for your needs and budget. There are some outstanding projectors that use various shift techniques to throw a 4K signal with three native 1080 chips. In many rooms the results are indistinguishable from native 4K in sharpness from your viewing position. Realizing this lets you put substantially more budget toward contrast, lumens, color fidelity etc. Also, it's important to assess what video sources you'll mostly be viewing. Frankly, the source quality options available to most consumers in North America across streaming, cable, satellite and OTA broadcast is surprisingly awful. And there's a LOT of bullshit claims being made by various providers. In the era of variable compression, resolution is essentially irrelevant unless it's backed by sufficient encoding AND delivery bandwidth. For most people, every dollar spent on a projector over ~$5k to $6k will only be visible when watching high-quality UHD Blu-Ray discs in a blacked-out room.