3rd Gen Favourite Battle Frontier Facility?

Pretty much what the title says. What is your fave battle frontier facility? I myself, found my myself always going to the Battle Factory or the Battle Pike. Sometimes, I'd go to the Battle Dome but I liked the previous ones mentioned better. When I was little, only once did I get to battle the Factory Head of the Battle Factory, Noland and I lost. All I remember was he sent out a Zapdos and a Regice and then I got angry cause it took me ages to get to him lol.

The battle tower,
cuz it's just battling,no other misc. things like the other facilities except for the dome and the arena.
But this is just plain old battling,
which is why I like it.

I like the Dome's tourney style and I like the Pike because it's the only one I've beaten the Brain in haha.

All the other facilities besides the Tower had really weird guidelines and gameplay even though I beat one of them and never beat Battle Tower. ;P

But I liked the Tower and it's straightforwardness. It was also the must heart-sinking though, because there were many times where I lost right before a 50 streak/7th win or whatever it was.

My favorite of the facilities at the Battle Frontier was the Battle Factory. Going through it gave me the opportunity to try out Pokemon that I hadn't really used before, and it was interesting trying to come up with strategies on the fly based on what your next opponent had.