I like video games but would never pay the admission fee for DQ. I heard from another person (can't quite recall who) that they got a free admission to DQ through their package. If it's not in our package, we'll definitely skip it.
If we are coming from the MK, I think we'll use the TTC and go to a resort closer to DTD and take the boat or bus from there. It might be faster in the long run. If we end up coming from Pop, we'll just have to take the bus.
I can tell you right now: it is great! I ate there last Sept. on my first solo trip to WDW and I loved the food but the dessert WAS SPECTACULAR. I ate nearly the whole thing (and regretted it later). The Polynesian is GORGEOUS and the boat ride over was so relaxing and I got some really good photos.