Pen
The game is on!
My favourite Zelda game varies quite a lot. Every single one of the 3D Zelda games has at certain points in my life been my favourite. Based on this I'm sure BotW will become my new favourite Zelda game at least for a while after its release. Honestly though, I've got an extremely good feeling about this game. I recon it'll become my absolute favourite Zelda game and remain just that. From what we've seen so far I can't see how any of the previous titles in the series could compare to it.