I see http://preev.com/ has different sources as input for the exchange rates, as far as I can see, kraken/bitstamp have better rates than binance or other p2p services including localbitcoin.
What's the catch?
If there is no catch but just a fact, why most of you recommend using binance for buying BTC?
thanks
Most people recommend Binance because it's a proven and stable exchange. I use it for most of my crypto to crypto trades.
Kraken is useful if you are EU based and you are dealing with fiat. They have SEPA withdraws with a 0.09 Euro fee.