Tough choice, but I think I'll have to go with the Sound Core, too.
I have more Anker cables and chargers than I care to admit, and two portable batteries, not counting the one that was appropriated by my step-son, plus a few other assorted products. But the Sound Core has been the biggest happy surprise. Plus, you don't really think about chargers & cables... I use them every day, and it is nice that they just work and you don't have to worry about them like with other brands, but that's just it - because they just work, you don't have to worry about them and it is sooo easy to completely forget about them. I have a 5-port on my nightstand, use it every night without a second thought. The 12v chargers in the car are dependable enough to have become fixtures. The battery in my backpack gets topped off every month or so, but I've never had to worry that it will work when I need it, it is just not a concern. But when that Sound Core is pumping out tunes while I'm working in the yard, garage, or anywhere, and that sound is GOOD, then you can really appreciate that it is a quality product.