Far too many of the exhibits being put forward for Plzen are thoroughly ordinary. I often wonder how many of the people who swing to Plzen after
@TeaLovingDave does one of his photo essays would regret their new position if they could actually stand in the zoo and see some of the exhibits with their own eyes.
For me at least (I assume this goes for a few other voters as well), I have not visited either zoo, so I can't even say that I really liked this zoo and someones argument isn't enough to sway me to the other side. All I have to go off of is arguments placed here in this thread and anything I may already know about the zoo, which normally isn't much. That being said, their hasn't really been anything said about Beauval. The entire argument (as most of this thread has been dedicated to whether the manatees count or not) can be summarized by this one post:
Beauval has a wonderful hippo exhibit, probably up there with the best in Europe and even the world, a great penguin exhibit accompanying a good sea lion pool and a large and lush manatee pool mixed with around 8 species of Amazonian fish and other river species. There is also an exhibit for Ocellate river stingrays in the Gorilla house, a very large flamingo exhibit and finally a pelican exhibit with multiple lakes. Beauval also has multiple tanks of Great Barrier reef fish in their Australian house.
As someone that hasn't been to either zoo, a quick description of exhibits is not enough to compete with the information that
@TeaLovingDave has provided, which shows that Plzen has a significant and unique complex that relates to the category (the Czech River Complex), along with Underground World, and then quite a few other species to go along with it. As you said, the last group of exhibits do appear to be ordinary or average overall, but at some point average enclosures in quantity outweigh less than a dozen exhibits of high quality, at least for me. Three (or four if we count manatees, which I would say are off show from our knowledge) exhibits are not enough to compete with what Plzen has to offer. No matter how good they may be (the Hippo enclosure at Beauval looks beautiful!).
You are absolutely right, if I visit both zoos it may be a different story, but for now, all I have to go off of is arguments and other peoples' thoughts. Of which, their isn't much said here about Beauval to make me think it deserves the win. In fact, you have given the most compelling argument so far, by saying what isn't so great at Plzen! That, however, is not enough for me to switch back currently, as I just don't know enough about Beauval.
Anyone, as TeaLovingDave has already said multiple times, feel free to provide more information and get me to switch back!