Frank...Canciones del Mar is smaller and quieter by far than the Copa. The rooms are bigger though in general. With 3 of you staying in 3 rooms...especially a week...you can probably negotiate the chica fees issue with the owner/manager. As long as you dont disturb other guests, he shouldnt have any problems. Is a pretty cool european guy.
The Copa has more services probabaly...at least variety of bar and restaurant menu on premises. I have found their food quite good for the price, but someone recently posted a negative on the food there. Could be YMMV.
I would recommend road trips if you have a car, but dont think you'll find Quepos a wonderful place to stay...especially for mongering. Manuel Antonio is nice, but mostly for couples and gay guys

. There is no place like Jaco for beachside mongering in Costa Rica. In my opinion, Tamarindo is not worth the drive, though the beach itself is cleaner and better than Jaco. I would not swim in the ocean at Jaco...VERY polluted.
Have fun, and use BOTH heads...
