I did a little more comparison research to the Samsung (which is still $30 cheaper)
The hardware specs are basically identical. Exact same processor and same size SSD. The HP has a fancy glossy monitor (which reflects that lamp and window behind you). The HP drops the HDMI out (favoring the annoying video-out through the usb port like my galaxy s4 has) and takes out the SD card, basically forcing you to use google drive. HP has 2 2.0 USB ports (in addition to the micro-usb port for video out and charging) while the Samsung has a traditional charger but has 1 each of 2.0 and 3.0 USB ports.
beyond that, the differences are largely astetic with the HP having multiple color choices (and inset colors) plus a light up bar (which can be controlled by apps)
So now its a tough call... I'd like to be able to charge with a standard micro-usb and I think I like the HP's look -- but on the other hand, I don't think I care about the nicer glossy screen and I like being able to have an SD card, even if its just as a method to transfer data without using a 3rd party services.
Also, I've seen great reviews about the trackpad on the Samsung so I'd like to hear how the HP compares once people start using it.
So i don't know...