Out of the those 3, MANA was clearly superior. The main reason was better texture. Taste was also a factor. Both of Joylent and Jake had a really distinct taste (most likely) caused by sweetener they used, which was really unpleasant.
In fact, I never managed to finish Joylent/Jake because I just couldn't get myself to drink them. On the other hand, I still use MANA for ~7 meals a week to this day.
Someone I know also tried Huel[4], but their verdict was "would not recommend".
[1]: https://drink-mana.com/ [2]: https://www.jimmyjoy.com/ [3]: https://jakefood.com/ [4]: https://huel.com/
The other big thing I found was the texture improves a lot if blended or left in a fridge for a time before drinking. Shaken and drunk straight away the texture isn't great.
Here's a list of Soylent style products; you can filter by shipping destination: https://www.blendrunner.com/
° Actually my bags still say Joylent, which was the name until a few months ago. https://www.jimmyjoy.com/