Okay, there is no doubt that all provinces have amazing scenery and dramatic landscapes and a wealth of diverse scenery.
But just given the topography and variations in climate it is definitely BC.
All of these are my own pictures from around only the southern third of BC.
Hiking the Chief by
Ian, on Flickr
Long Beach, Tofino by
Ian, on Flickr
Horne Lake Arbutus by
Ian, on Flickr
Okanagan by
Ian, on Flickr
View from Hemlock by
Ian, on Flickr
Osoyoos Desert Centre by
Ian, on Flickr
Beacon Hill Park by
Ian, on Flickr
Rainforest, Meares Island by
Ian, on Flickr
Lac Du Bois Grassland Park by
Ian, on Flickr
Central Interior, BC by
Ian, on Flickr
Around the Bend by
Ian, on Flickr
Vancouver Sunset by
Ian, on Flickr
Okanagan by
Ian, on Flickr
I could have posted a lot more (for example none of these show the Gulf Islands, the Rockies, the vineyards, etc... but I only had about 5 minutes of time.