I always go to TWOC because when I started brewing it was the only place I could find with a decent range of product. I may have even ventured their because they sold Grumpy's kits. Anyways I was out of the game for a couple of years living overseas and so was excited to head down to TWOC when I got back home earlier this year. It is a long drive but I do like the range and the service. Having said that it was only recently that I heard about Gryphon and Brewmart, which are a little closer to me, so I would be interested if those in the know could post up a few pros etc of each shop. I will no doubt go and visit each in time.
TWOC - Pros; Large range of product, will crack your grain (I don't have a mill), the fruit and veg market next door is pretty good. Cons; pretty far if you live north of the river, $
Gryphon - Pros; Is on AHB, ??
Brewmart - ??
I don't intend this post start a slanging match.