sharring my experience:
- HPE: great repairability, kinda chunky, i had a few pro and elitebooks, the 3 weakspots seems to be wifi cards, motherboard and hdd (my elitebook 8570P has had 3 motherboard and one hdd die in the 10 years i used it, all the 3 i own had the wifi card die at some point) models i have experience with: 8570P, 8570W, 4540s and my sister's 455 G1 and X2 (G1 or G2 do not remember) and Zbooks G1 and G2 at work
- Lenovo: good repairability, we had a few at work and they worked rather well, although they are full to the brim with junk software from the factory. i can't remember the model names
- Toshiba: extremely poor repairability, we had 2 at work, both died of hdd failure just past warranty and were close to impossible to open to replace the dead drive, i do not remember the models either.
- HP (not E): meh repairability, hdd and ram are user replaceable on all i seen and the shells opens much easier than on the toshibas i had the displeasure of working on. model: 2 old DV7-something (one had a dead motherboard after 12 years of use) and and old hp-compac.
- Dell: good repairability, all my experience with Dells are that they look and feel like cost cut HPEs, they do seem to fail a bit more often and cut corners with random capability, all my HPE have GB Ethernet while my 2 years newer Dell only have Fast Ethernet for example. models: E5550 and Precision 7550 at work
- Asus: unknown repairability: can have some stupid design flaws, all the ones we had at work died before the end of warranty because the screen when opened blocked the exhaust port fully, forcing the fan to spin up and the PC to heat up causing a premature failure of the fan, i do not remember the model and not all of them have those stupid ideas, but all of the ones i saw where rather flimsy, i never had the experience of fixing one because they died in warranty or did not die at all. i do not remember the model names either.
- MSI: good repairability, a few friends of mine have MSI, all ROG though, they seems decently built, and from what i saw easy enough to open and change the hdd. the one we upgraded was a GL63 i do not remember the models for my other friends.
and although i have not tried it because i do not have that kind of money, the framework seems like the best laptop for the long run, built to be repaired so should be much better than HPE or Dell for that, if repairability is something that matters to you at all. enterprise grade laptop seems to often try to be fairly maintainable so often come easier to repair too, if you do not care then i would not recommend dell if you like good keyboards, theirs is garbage on all the laptops of their i have tried they always feel the worse of all of what i have tried (on laptops).
hope this opinion dump is of use