I didn't care that much for any of the characters that died, except maybe Stoneheart. The first (died in aGoT) was OK, but his time had passed. The Wedding guest was OK, and getting more interesting but was hardly a favourite of mine. Who else is actually dead? A few middle ranked characters who had promise. I can only think of the 3 above plus maybe 3 other middle characters who are definitely dead, and one of the three above is only sort of dead.

And, showing how our own PoVs can differ, I think new Jaime is more interesting than the SoS one. He still has all of old Jaime's aspects but some new elements too.