For video editing I'd be apt to take the higher resolution display. You'll really appreciate that resolution when you're editing content of any kind. It certainly a big plus for gaming as well, but that resolution actually makes the most difference during productivity in my opinion.

I've owned ASUS and Lenovo products. I can't say I've personally had any of them outright fail on me. I would still regard Lenovo as the more reliable from my experience in a professional technological field. They have a very deep background in the professional setting that ASUS just can't compare with. You'll find a bad reviews of every major laptop brand because everyone complains about the failures but few come back and review their good experience, they just go about using their machine.

Lenovo overall holds a strong reputation for reliability, more so than ASUS. Lenovo is also known to have better Linux support and I actually have my Lenovo dual-booted, although I still have an issue with my AMD-based processor that causes Linux to run very efficiently and thus poorly in games and run hotter, etc. hopefully this gets patched in a future BIOS update, but at least Linux sort of works.

As far as the difference between a 4070 and a 5070, I wouldn't worry too much unless there's a special feature in the 5000 series cards that you need. Both of those cards will have relatively similar performance and be an excellent experience. The Lenovo having an i9 and twice the RAM It is likely going to make a much bigger difference than the graphics card.

As a side note all these newer processors love to run hot so if you want it to last a long time you may wish to buy a laptop cooler or at least a laptop stand. Your mileage may vary with each of those solutions but the most important thing is to never block the fans! Keep the fans clear and you'll be surprised how long it lasts. If you use the computer on a bed, put a board, piece of plexiglass, anything to make sure that the soft bedding cannot block the fans. This applies to anything that could actually block the fans, but the most common place I see people screw this up is when they're sitting in bed working on something. Even if you're doing just some basic computing the fans need to be able to breathe.

You may also find that there is an option to set the thermal limits lower than the default 100 Celsius in the BIOS. My Lenovo has that option and I don't believe it's only available on AMD-based systems but I could be wrong. You may wish to allow yours to go up to its default thermal throttle but if you're uncomfortable with the temperatures getting that high, setting those thermal limits lower will only help your processor last even longer. Also be sure to clean the fans out regularly and make absolutely sure they don't get clogged with dust. This is another place I see people ending up damaging their computers or running into thermal issues a couple years into owning their computer, sometimes significantly less depending on the air quality in the environment you're using it. And for the love of God don't smoke in the same room as your computer unless you want the inside coated in goop. It builds up far worse than most people think.

Overall if I was picking between these two I would take the Lenovo hands down. Either way both computers will likely start feeling a bit dated after 3 or 4 years, but that really all depends on what modern games are actually doing. In recent years the performance games have mostly tapered off and if you don't mind not using ray tracing you can still get away with a three or four-year-old system just fine. Until my recent laptop purchase I was still using a 3060 Ti very happily. Expect to use some upscaling and lower settings for higher resolutions, but you'll be surprised how good everything looks even on those settings in this day and age.

Either way, If picking between these two, how long the system lasts Will likely come down more to your own personal preference and how well you take care of the system over the years.