I have stayed at both, and I have to tell you, unless you are planning a lot of pool time, the Beach Club is not worth an additional $140 a night.
Sure being able to walk to Epcot is great. But at POR you are a 5 minute bus ride away. And being able to boat to Disney Springs from POR is so nice! When I stayed at the Beach Club I missed having a decent food court, and POR has one of the best ones on Disney property. I also really like the gift shop at POR too.
For me, POR has a much more peaceful feeling than the Beach Club. The Beach Club feels more public, if that makes any sense. It has so many visitors, and with being on the boardwalk there are always people walking around. The themed pool at the Beach Club is right on the walkway around the boardwalk. In fact to use the big slide you have to cross the public sidewalk. POR feels like a peaceful oasis away from the parks.
I have to agree with a previous poster. If you dislike the look of POR so much you may want to postpone your trip. It is a lot of money to spend knowing you won't be happy. Or as another poster suggested, check out the rates at the Swan and Dolphin. They tend to be competitive with Disney moderates. You do lose a few perks, like Magical Express and being able to charge to your room. But they may be worth a look.