Let me explain what I have got to understand from XMO so far.
XMO seems to be the most important of the forks, the one with most focus from the community.
Here is a link to compare Monero to Monero Original from the Monero website: https://monero.org/forks/monerov-xmo-hard-fork/
Basically Monero Original is the exact same copy of the Original Monero, hence the "Original" title, Monero has become the new Monero algorithm which only differs in ASIC resistance, that means you can not mine Monero with the Antminers although you can still do so with Monero Original.
MONERO (XMR) Dropped 60%- in mining hashrate, which means people moved out from mining it, since it's new algorithm does not support their mining equipment (ASICS)
MONERO ORIGINAL (XMO) Is currently in an "unknown" state, people are concerned and do not know where to go, although I hear that interest is great and it should thrive. XMO is currently trading on Hitbtc.com in reasonable volumes and it is also newly listed on Changelly.com.
Price:
Monero Original (XMO) Price went from $11 to $18 dropped to $4 went up to 16$ then down to 8$ and have been swinging from 7-10$ since
(Analysis date: 19 April 2018 12:10 GMT)