I pick Byteball, technology is way more advanced than IOTA while marketcap is 35x lower. See:
What are the main similarities and differences with the other DAG-like Crypto IOTA?
tonych: IOTA also uses DAG, and this is the only similarity.
Everything else is different:
– IOTA uses PoW. In Byteball, the ordering of transactions is based on main chain
– In IOTA, parts of the DAG can be orphaned. In Byteball, there is no chance of orphaning
– Byteball has transaction fees, in IOTA there are no explicit fees (but users still have to expend resources for PoW)
– In Byteball, there are deterministic criteria when a transaction becomes final. In IOTA, there are no exact criteria, it is still probabilistic
– IOTA is a single token currency with only plain payments, Byteball has multiple assets and smart contracts
– In IOTA all payments are public. In Byteball, there are assets that are transferred privately