What's the best mall in/close to Arvada?

It depends on what you're looking for. To the south, the Colorado Mills Mall at I-70 and Colfax is a great Mall. To the north, Flat Irons Mall in Broomfield is more like your traditional mall. But in between, we have some great shops and unique items. Olde Towne Arvada has many of these great little shops.
I hope this helps!!