To compare Android player, not just the hardware spec the most important is the,audio and video codec.Below some tips for you to choose a good Android Player :

Selection criteria when you survey Android TV box :
1). Selection criteria of Android TV box is not the CPU speed or number of cores, very important criteria is the audio/video decoding capability and the reliability of the hardware.
2). Hardware Principle play very important role. Please select the hardware manufacturer that has in-house Android engineer to continuously develop the firmware to fix software bugs and capable to develop Android Apps as value added service.
3). Check the historical firmware version to verify the continuous bug fixes and improvement.
4). Please avoid Stick base or dongle base Android TV due to the heat and WIFI signal issues.
5). Post sales support is very important to optimize your device. It is best if the principle has public forum for sharing and feedback.