A 28mm-135mm lens as a kit lens on a 1.6x FOV body is a travesty. That's an old film-era lens that has a reputation as a so-so lens. The Nikon 18-105 is a digital-era lens, designed specifically for d-slr use. The Nikon has a 1.5x FOV factor.
With a 28mm lens x 1.6, your 35mm equivalent FOV is 44.8mm on the Canon.
With an 18mm lens x 1.5, the 35mm equivalent FOV is 27mm on the Nikon.
Why any company would package a 28-135mm lens on a d-slr kit except sheer cheapness and cost-cutting is beyond me. Again, the 28-135 kit Canon is offering seems like a way to use up remaining 28-135 inventory at the expense of the customers who might buy such a lash-up. The better kit lens is clearly the digital-era wide-to-telephoto Nikon lens. The old Canon 28-135 is being used as a USA kit lens, but not in Europe or Japan,where customers are ostensibly a bit more savvy.