I have owned the SW pro. I also have owned a DP LE. I presently own the SW comic prem and a Munsters prem. I would expect DP to win this poll easily.
While I like DP , it did not stay , as it felt like the same game over and over. A great shooter with some really interesting shots and great integration with the theme. I believe my game is on its fourth owner now and I believe he is trying to sell it. FWIW.
I am a Munsters fan. Yes simple rules, but, it is a fun game that gets a lot of play in my collection. I would buy it on the present rule set, but, there is potential of a rules update that may make the game even better. This game can be bought discounted in the secondary market due to the rules situation. Not a bad purchase if gotten at the right price. Most likely not a good game in a one game collection, I would feel.
SW pro is a wide open game, that to me is a combination of two of my favorite games ( Iron Man and Game of Thrones). It is a speed game like IM and it has rule depth/ strategy of GOT. I added a shaker and PinWoofer sound upgrades to my prem and they are well worth it. The comic editions are the best art in my opinion , but, I would have no problem with the original edition art depending on purchase price. If you can swing it get a prem/LE , worth the extra dough.
So for a one game collection, I go SW.