To me, the 70's Deep Purple is superior to what they did from Perfect Strangers onwards. I consider the Coverdale phase as good as the Gillan phase. And Come Taste the Band is amazing: Bolin, without guitar riffs, made a great work on it. But, after that, I also think they did a lot of very very good albums like Perfect Strangers, The House of Blue Light (yes, I think so... only Call of the Wild is the weak spot), Purpendicular (this one maybe at 70's level of quality, I LOVE it), Abandon, Bananas (yes, I also think so.... IMO that non-sense cover and Lord's absence didn't help to people take it seriously), What Now and Whooosh. Even the "worst" albums have a lot of good songs.
From my first impression, Whoosh is really good, I think it has an even more relaxed/rock 'n' roll vibe than its 2 predecessors and it is very inspired. The album starts very consistent, but from The Long Way Round (great pairing with The Power of the Moon) to its end is really great! If they released Remission Possible/Man Alive together together as a single, it would be way better! And The Adress is so cool as instrumental, another great standout.