Me, I would say go to the Swalphin. Did anyone else ever note that the Dolphins really look like fish?
My wife would probably say POFQ.
Here is what is great about the Swalphin. It is a deluxe resort in the Epcot area that has great proximity (even walking if you like) to two Disney parks, and it offers MOST of the on site Disney guest benefits. You get Extra magic Hours and complimentary WDW transportation on property. What you don't get if Disney's Magical Express and the Disney Dining Plans. Generally I would say not much of a loss there, as we usually rent a car, but even if you don't, something like Mears isn't that expensive. I'm also done with Disney's overpriced Dining Plans, but I can see how the free food could be attractive. So, for giving up DME and DDP what do you get? I think you get a full on deluxe resort Disney experience. You can't beat being in the middle of all the activity in the Epcot resort area, boating or walking to Epcot and the Studios, the stroll along the Boardwalk after Illuminations is over, quick and easy access to those parks for Extra Magic Hours, maybe even seeing some of Illuminations (the taller fireworks anyway) from your resort area without going into the park. All that is really cool.
So, why would my wife choose POFQ? No, not for DME or DDP. Rather, for her, there is a little (as the French in the French Quarter would say) 'Je ne c'est quoi' missing at the Swalphin. For those that don't parlez Francais, it's a little "I don't know what". You see, the Swalphin aren't really Disney resorts, even though they are Official Resorts of Walt Disney World. They aren't run by Disney, they aren't staffed by Disney. They are Starwood resorts that have more of a business feel than a Disney feel. When you are directly outside your resort, or on the Boardwalk, in the middle of the action, it is all Disney, but inside the hotels, with the suits and the convention guests and the other.......my wife can't quite put her finger on it...it just doesn't "feel" Disney to her, to the point that she would rather be farther removed form the action but have that Disney touch.. It's not enough to keep me away, but it is enough to turn her off on the resorts.
So, if being in the middle of the action is more important to you than the sense of Disney theming, go Swalphin. If you want that Disney touch, go Port Orleans. If you do go Port Orleans, I'd suggest Riverside. I still like to call it Dixie Landings, and it is the best themed moderate resort there is. You really feel like you are in the Old South, and the ability to make you feel that is very Disney.