Ethereum is better for transaction not only because of time and block confirmation the main readon I am considering ethereum is for transaction is that fees whole comparing by converting to fiat currency transaction fees is cheaper in ethereum . May in future if ethereum price increases then it may increase now ethereum is better for me crypto currency transaction.
Major reason why ETH is preferred over the btc is due to the transaction fees. In between it has happened that if transferring btc the fees were much more than the transfer amount and thus ETH was the much better and faster as well for transferring form one address to another.