Well, Barbara Taylor Bradford did write a very good book with Woman Of Substance, I can't fault the story or her writing ability, I can't speak for Danielle Steele but I do know she gets a lot of her books made into films for television--so I guess a lot of people do like her work.
But with Barbara Taylor Bradford, I don't think the reason for her descriptions can possibly be 'page filling', somehow. There are over 800 pages, and that's quite a lot, so I think 'page-filling' can hardly be her reason. Perhaps she just loves putting descriptive sentences together or something. Personally I am not in favour of long descriptions, even though it gives us the opportunity to show our skills in sentence construction etc. She also uses a lot of adverbs and most of her sentences seem to be passive, which people usually seem to frown on, so I get a few mixed messages on all this. Do we listen to the how-to books on writing which say 'don't do it' or do we look at the work of much-published authors and follow their lead, or maybe we do both? Oh, well.
I will have a look at Danielle Steele by the way... I have a book of hers someplace I haven't read yet... and see how she does it; you have roused my interest in her hahaha...
Mary Ann