I don't agree sunny/bright areas are the best though. One of the things I love in Demon's Souls and Bloodborne is the fact they are so dark. That's one thing that makes these games my favorite.
I don't think I will ever forget being carried into Anor Londo by the batwing demons in DS1 the first time.
Ever since then, I always look forward to a sunny area among all of the dark and dreary.