Atv2 potential?

Hello all,
I’m new to this and kind of overwhelmed with all info I have read. I have thought about getting one of the android MQX boxs or equivalent etc… Have an ATV2 just sitting around and curious to its potential. I want it to run apps like kodi to get free tv, new movies and ppv fights (for free) etc. My first ?, can this be done with atv2? If I can is there somewhere to guide me through it step by step? I have MacBook(older), a MacBook Air (relatively newer), and Windows 7 on a pc. Again sorry to be so nieve but I would rather beef up my atv2 then purchase an android box. For what I want to do what makes more sense???
Thanks to all who help.