In my opinion as a mostly-vegetarian who used to adore burgers as a kid, the Impossible brand was by far the most realistic (and my beef-loving partner would agree, they made stroganoff with it and loved it)... but the price truly is ridiculous at this point. It started out just barely justifiable, and it's simply too high now.
I am more than a little bit outraged that animals who were raised in miserable industrial production facilities to meet an ugly end are having their parts sold for less than a decent alternative simply because of subsidies distorting the market.