I would choose WOC dessert party over the BB PTN package. I thought I disliked WOC because it was such a hassle to get a spot and then, as a short person who hates crowds, I was more focused on the people around me than what I could actually glimpse of the show (since I also wasn't willing to spend the couple of hours waiting ahead of time, making sure I was near the front of the queue).
The dessert party is amazing! You get a perfect view, plus you get to sit (worth the price just for that tbh), some yummy snacks to nibble on, and the CMs who work the party are so friendly that any stress about the crowds just evaporates. Plus it was soooooo nice just to hang out in the chair and comfortably watch the "kiss goodnight" while everyone else slowly shuffled out (this was the only showing of the night, so there wasn't anyone waiting to get in for the next show). It was the most fun I've ever had at WOC, and I realized that I actually enjoyed the show! (And I've even done dinner packages, which were definitely better than waiting in the main queues, but it doesn't change the fact that I'm still short and people taller than I am seem to stand in front of me no matter what).
PTN could be worth it if you're already planning to eat at BB (which you might be since it's a unique experience to DL that can't be found at WDW), but I personally prefer waiting until the second parade and watching down by IASW because there are always free spots available, even moments before the parade starts. If you want to watch the fireworks as well, the package might be useful, but the reserved seating is currently down by the flag pole so it doesn't give you the best view (unless you're willing to scurry to a spot further down Main Street after the last float passes by).