1. Musing is open, decentralised as much as it is possible and low entry for new accounts. On the other hand Arena is highly centralised with biased approach and little or non features.
2. Points allocation on Musing go to the accounts immediately after any interaction on the platform which make the distribution transparent and fair and Arena controls the allocations, they distribute late and also their distribution is non transparent as they decide how mush the allocate to accounts.
My point here is to motivate you to compare, learn and gain knowledge about any new project that you willing to spend your time on.
Remember nobody on this world has position to waste your time. Time is the most valuable thing.
Great points! I would add that the Arena is pretty much PvP (even in the name!) up to the incentive structure, while on Musing the emphasis is more on community and participation. And while there is a leaderboard for communities, it is not really a CvC environment because a) you usually choose to join a community based on interest; b) you can make a few coins by either being big in a small community, or being constantly active in a huge one.
