Nice transparent initiative from the admin. To contribute to its completeness, that particular "active" (even if it gets its energy from the screen) pen (S Pen) from Samsung has about 4000 levels or so of pressure sensitivity, against about a 1000 or so from the Hipen H3 from Chuwi.
Of course the screen size and PPI, and equally important is the price difference, is a big factor in the purchasing descision. Along with which of the two passes most of the quality control "double checking" by upcoming reviews. Like palm rejection (still not sure how much of the hardware, firmware or software is responsible for it). Another factor is general stability especially with (major) Windows updates.