To be honest I'm leaning slightly to the Pentax. But the way they sell their products is kinda irritating I must say. The shops do not stock the one with the WR kit lens, which is pretty lame cause you're getting a weather resistant camera. Unless you pay a premium for the 18-135 WR lens, which is priced a little outside my comfort zone. You cannot molest the camera if you purchase from the pentax web store.
And even if you purchase from the webstore, you cannot buy the white/blue one with the WR kit lens. It's just so lame the way they bundle their products.