collected follwing relevant points related to staking which might aid decision making
a)If staking multiple nodes, stakers cannot choose the distribution of stake. When a staker stakes more than one node operator, their stake is split algorithmically based on the total amount of POLYX the user decides to stake. To balance the amount of POLYX staked across operators, the operators with more staked will receive less of the user’s POLYX and those with less staked will receive more. Balancing the staking mechanism in this way helps to further secure the chain.
b) polymesh staking design demo here https://www.figma.com/proto/BeJj8sQxYFOkzrVtik268m/Dashboard-UI-v1?page-id=1634%3A9&node-id=1634%3A3402&viewport=2332%2C1865%2C0.31942078471183777&scaling=min-zoom
c) from polymesh tokenomics
The Node Operator commission, a percentage of block rewards claimed by the Operator, is subtracted from that Operator’s payable staking rewards. For Polymesh mainnet launch, the maximum Operator commission will be set to 10% and is subject to change via PIP.
Remaining block rewards are split as a percentage of POLYX staked on the Node Operator. This includes the Node Operator's stake.
based on point c, it appears that for operators with higher commision, lower rewards get distributed to stakers as a result of subtracting the commision from operators payable staking rewards...
So i would choose any operator with lower commision and distibute it evenly to spread my risk(if i choose only one and that gets busted then my entire stake is at risk)..