What do you think is the best for farming?

So I made my layout by I cant decide between putting the storages in the center or the mortars and wizard towers in the center.

What do you think is best? Give opinions plz.

Thanks :)

FIRST LAYOUT: http://i.imgur.com/CjgwtZgl.jpg

SECOND LAYOUT: http://i.imgur.com/aBbod4Ql.jpg