I currently use this one. I like it well enough, it generally has enough space but I have seen some planners on The Hach that have me gaga (and sold).
I really love the Draw Your Tomorrow planner in hot yellow.
I like that it's spiral bound and comes with a monthly view (which my current planner lacks). The following inside shots come from Fred Flare which is somehow managing to sell it for $36... hmmm.
If I want to pay $36 I might just go for the LiveWork AGENDA Diary, size large.
I like that it comes with weekly, monthly AND yearly almost like you could keep a little mini diary right along side your planner. I like the look of it too, I would probably get "rose." I will admit I think I like the weekly set up on the first planner more though.