I enjoyed (and actually played!) Spirit more than any of their recent albums - Delta Machine really left me cold.
More songs in the vein of Cover Me and I’d be happy
100% agree with this, Delta Machine for me was just bleak, I much prefer Spirit, it just took a few listens to get in to, but Going Backwards, Cover Me, You Move, No More, Fail, all great.
I also think Playing the Angel is great too, Sound of the Universe I enjoyed at the time, but now I struggle to get through it, although there are some gems on there.
For me Ultra is an extension of the 1983-1993 peak Depeche Mode, it's a great album and the producer did a fantastic job of capturing those Alan Wilder production qualities.