That's like asking what is the best tasting food. Everyone has a different butt. The best you can do is ensure you get the proper width and then try to decide if you prefer a flat or curved saddle. Some people also like saddles that have a little rise in the back, others don't. After that you basically have to roll the dice. As long as it's the proper width and you have the tilt adjusted perfectly then most saddles should be comfortable.
You'll always get poor opinions because Joe might buy saddle A, but he doesn't know how to properly adjust it and he tells everyone isn't not a good one when all he had to do was get the tilt right. My biggest deal is I only buy saddles with actual real leather covers and not fake leather.