I've been wondering about this for a long time. Generation 3 brought about the rise of several really cool battle facilities, almost all of which never existed in Generations 1 and 2. From the Battle Tents in Emerald to Trainer Tower in LeafGreed and FireRed, I want to know: Which one do you prefer and why?
My favorite battle facility has to be the Battle Pike at the Battle Frontier. I love how almost anyone can make it to the end and win Battle Points with just a hint of luck and some clever choices. Sometimes you don't even have to battle trainers! I like the overall design of the Battle Pike compared to other similar places in the games, and it's leader, Pike Queen Lucy, is really quite interesting. Her choice of Pokemon can be annoying at first but once you overcome her, the Battle Pike might just be the best battle facility in Emerald.