7" tablet vs 17" laptop. Silly argument. Then again we tend to go through this same nonsense with 1/2 tons vs 1 ton dualies. One is not better than the other. Better is relative to its use and the needs of the person using it.
I have a 15" laptop, a 9" tablet, and a 7" tablet. They are all excellent for my needs in different situations and each has their strengths and weaknesses. My needs are different than everyone elses so I can't judge what's better for you, only share what I like or don't like.