I don't believe ANYTHING from the Second Chance set was recycled for PYL. There's about a 7 year gap between the shows, so I don't think anything would've been saved.
As for Second Chance, I like the Q&A format better, although it takes longer to play out. However, PYL wins hands down in the visual department in terms of the gameboard, the variety, and of course animated Whammies. One thing I DID like about Second Chance's gameboard was that the prizes were all a mystery. All the prizes were symbolized by a gift box, and you didn't know what was until you landed on it.