According to the data from F2pool, the daily coin reward for an Iceriver KS3 Miner is approximately 2,100 USDT, while the daily coin reward for an Antminer KS3 Miner is about 2,200 USDT.
On asicfinder, the current best quotation for an Iceriver KS3 Miner Futures is 45,400 USDT per unit, and for an Antminer KS3 Miner Futures, it is 36,500 USDT per unit.
In summary, the Antminer KS3 Miner seems to have a slightly higher daily coin reward compared to the Iceriver KS3 Miner, and it also comes with a lower price tag on asicfinder.