A good Impossible Burger served "steakburger style" as in medium rare and "still bleeding", has been the best fake burger I have ever had, but the Impossible is often too easily dried out when folks grill it to medium or much worse medium well, resulting in some of the worst.

Beyond is better in that bad burger place/greasy spoon medium to medium well, so its generally more consistent in places that serve other burgers, but it doesn't beat the Impossible at its best.