I tried to plan ADRs how I would if I were going on a normal WDW trip. My reasoning...
1. I probably won't be able to attend all of the DIS events for one reason or another and there may be some where there's no conflict.
2. If an event I do plan to attend overlaps with an ADR, there's still a decent chance DH would want to keep it and just go with the kids and possibly my parents.
I was pleasantly surprised with how much availability there is. Of course, it's likely a result of no free dining being offered at that time, but at 128 days out I saw lots of openings for 'Ohana dinner (decent times), BOG (all 3 meals), character meals (including the first pre-park opening slots), shows (had my choice of everything if I'd wanted HDDR), packages (lots of Fantasmic), well timed Cali Grill and Narcoosee's dinners, and handful of other popular spots.