Usually, we never take advantage of Extra Magic hours. That being said, there are a few things to consider.
With a two week trip, I think there is less of a need to spend every waking moment in the parks. You will likely be able to accomplish everything you want, and then some.
We also do not ever park hop. I think EMH are more worth it if you are going to a park with EMH, then hopping to a different park for the day or going to your park for the day, then hopping to the park with evening EMH.
That being said, I am breaking with tradition and going with the EMH trip for my upcoming solo trip. I will only have four park days, so did want to maximize my time.