+1 for the Omnicharge. The build quality is superb and the little screen is very informative. It’s slim and not heavy. Add the flexibility with DC output voltage settings and it goes to the top of the heap for me.
I also recently went through two hand inspections at US airports (domestic and international) with it and they took a look at the FCC and mAh rating sticker / decal on the back and waved it through. Be sure to get the Pro pack, though, since that has all the DC barrell connectors.
Obligatory snap of it in action.