Bak, I'm not sure "build quality" is any more or less across all of the laptops. They're all assembled in robotized environments that may or may not have factory workers committing suicide in droves.
("What we need are more safety nets to catch these loonies - but let's not improve working conditions!!")
One feature that I like about Dell's is that their model-numbering (or Asset Tag) is all I need for downloads and updates. HP's, on the other hand, have model numbers and then secret sub-level numbers that makes it nearly impossible to detect which Actual Model is sitting in front of me. I hate that. Lenovo, MSI, Sony - they all make Updating a lot easier than HP.
The bigger issues for me are (1) maintaining it easily, and (2) not having their OEM crap loaded in the first place.
Dell does that usually, but there's no guarantee - they are no longer focusing on Notebook Design as a business strategy so they are probably doing the "re-labeling whatever our contractor sells us" like everyone else is.
Changing RAM has become a major problem because, often, notebook motherboards have a single RAM slot on the top and bottom of the motherboard. One of them will be easily accessed under the case - just a simple panel to unscrew. But the other one will need keyboard removal, maybe disconnecting the Video, Keyboard & Touchpad Connectors (UGH).
If you think you'll EVER want additional RAM, then I'd check on that first and foremost. What a pain-! But they do this to segregate 'heat' into two locations instead of one bigger, hotter zone.
Apparently, "smokin' hot" will never be a great attribute for notebooks.