I give 4 stars for Smoothie King and probably only 3 for Port of Subs. When you're tired of Jamba and you want something a little bit different, Smoothie King is a good option.
Like Jamba, they have a huge list of smoothies to choose from, that range from low fat to high protein. You can also create your own smoothie and add in a variety of healthy supplements. If you go on their website, they've made it really easy for you to learn how many calories and fat grams are in each smoothie, so if you're trying to watch your weight, you'll want to stay far, far away from peanut power. It's like 500 and something calories and 20 grams of fat. In a drink! But it's good. I guess you can't win them all.
The cool thing is that they offer a lot of low fat/calorie options that are still really good.
But as for the Port of Subs...Meh. I just think they're okay. I'd rather eat at Quizno's or somewhere. Maybe even Subway and I'm not the biggest fan of that place.