Profitability Calculators - Which is more accurate, MiningNow or CoinWarz?

I’ve noticed that the profitability calculators either for Bitcoin ASICs or DogeCoin ASICs with MiningNow & CoinWarz show different daily profits. Which profitability calculator is more accurate, MiningNow or Coinwarz?

I found that miningnow and hashrate.no are generally about the same. I’m not aware of coinwarz but I generally assume anything using a z instead of an s is immediately minus some credibility points. Although I do like things with minus credibility points ending in z for other purposes. Just not things like financial calculators.