the oleophobic coating on p30 pro seems to be much batter than on Samsung phones, a LOT less smudges and fingerprints, but then it will depend on how long the coat will last, as it seems Samsung went with a solution that is less effective but lasts a long time, while other phones seem to "run out" after 2-3 months and the coating is worn off.
Overall quality feel is about the same for p30p and my s9+ and note9, I only had s10 in my hands for couple of minutes to compare the latest. Screen curvature is better on on p30p in regard of eye comfort, Samsung narrowed the edges in S9/N9/S10 too much and it getsin the way often, when reading or typing on larger sized gboard keyboard I don't really notice the screen is curved on p30p, but on the other hand samsung has much better handle on the random unwanted touches on the edges when you hold the phone. But that is software related..
I like buttons on Samsung phones better, they are smoother and easier to tuch, too firm on my huawei, and kinda clicky/loud, some people like that, I don't.
Display on huawei has light discoloration on the edges, noticeable only in bright/white colors, but it is still better than not being able to read first and last words on full screen text article when on Samsung.
What is kinda weird for me is that knocking on the display side by side note9 - p30p, the huawei sounds kinda hollow, like the cheap ipad 2017/2018 or old ipad models without laminated screens, yet when I compare the displays up close the display on huawei seems to be even "closer" to you than samsung, thinner glass probably. I think huawei is not using gorilla glass 6 as samsung does on s10, otherwise they would have advertise it as such. 3 of my friends have mate 20/pro, they all complain about horrible micro-scratches on display, but when I inspected it it was the same as on my note 9 - seems to be scrathes on the oleophobic coating only, as with a good clean the display does not show any scratches even on direct sunlight.
Generally, the recent p/mate phones feel as good as any other premium flagship phone. And their selection of back panel colors is the best at the moment, although I was only able to pick the black - breathing crystal was available for 256gb model but I don't need that much storage and wear cases/skins anyway, but if I had my hands on one of the gradient colors, I would probably just wear transparent case on it, it really looks great.
