If Bitcoin is king of cryprocurrency, then Ethereum is the king of all ICOs ,do you agree? Stella,neo and no other blockchain has hosted ICO than other than Ethereum.
No doubt about this, ethereum is the ICO king way back 2017 until now, many projects that have own blockchain try to launch something like ethereum. Trx, eos and other coins follow the same path ethereum does but still almost all of projects launched their ICO in ethereum blockchain.