I prefer HDMI because it's simple and it just works. When I plugged my current monitor in via DisplayPort, if the PC was sleeping, the monitor would wake up every two minutes or so, look for a signal, then go back to sleep. Very annoying. I figured this was some poor implementation in the drivers (linux). Regardless, when I got rid of the DP cable and connected via an HDMI cable, everything worked fine. I'm not a gamer, btw.