Hi Milli,
We've stayed at both resorts. I would have to agree with Bellagio on all counts. The resorts share a beach so the swimming/beach is the same at both. I actually prefer the Coste Verde as it is smaller and less crowded, but the food is better at the PP. Personally I don't go to Cuba for the food, so it doesn't matter to me. I found the line ups for drinks and waiting to book an al a carte at the PP much longer then the PCV. Since the PCV is a smaller resort it seems to have a friendlier feel, then the PP, IMO. The rooms at the PP are nicer and bigger, but really all we we using them for was sleeping and showering, so it didn't matter. Except when we were at the PP we did have Logan with us. If you are interested in the Holguin area I also highly recommend the Grand Playa Turquesa, it is a lovely resort with a great beach and wonderful pools. The food is also really good.
Hope this helps some.