In the end there is a centralized entity to orchestrate the Coinjoin that you have to trust. And both those projects have lights and shadows… X is full of discussions about that also involving the two teams most of the time with hard and bad language… I prefer to use a decentralized system that does not require any third party trust!
Discussion
Yes, I know they fight a lot. Mostly from the Whirlpool guys in my experience .
What do you mean you have to trust them? About what exactly?
Maybe trust was not the correct word; you always are in control of your coins but you are using a third party service: they could collect data, they could be forced to provide data by other parties, they could shut down the service overnight, etc…
Moreover, Wasabi works with chain analysis companies while it is not so clear how anonymizing is Whirlpool considering that the majority of the users are not using their private full node and so Samourai knows the zpub of almost every users that use their services…