Goodness. I suggested both destinations to a bigwig in BA a few months ago, along with ZAZ. TER I don't know well, but PDL is a great spot for a few days, an interesting and walkable colonial town, indeed the airport is just about walking distance from the town centre. Excellent weather and great sea food. It's also a back door route to SATA's network of inexpensive flights - using narrow body aircraft - to Canada / BOS / NYC and a few other spots. It's one of the shortest cross Atlantic routes, PDL is a 1,000 miles nearer to BOS than LHR.