Carnival of Souls is nowhere near my favorite Kiss album, but I like it a tad batter than you. But you hit the nail on the head that Kiss (not for the first time), was chasing a trend. Everything around that album was just bizarre, the album was finished, the reunion stuff started coming up, the album sat on the shelf for (I think) over a year .. in any case, I had a copy of it 6 months before it was released. When they released it, Kuilick and Singer were out of the band, but Bruce did a lot of promo for it, because it really was his album. They never toured for it .. just odd all around. There are some decent songs on it though, I would bump it up a few spots.
Hot in the Shade is probably my least favorite album of theirs, too many songs, nothing really stands out on the album for me at all. The one thing I will say is that it was a really good tour, one of their better ones in the 80s There were a a few other versions of Hide Your Heart .. Bonnie Tyler and Molly Hatchet did it as well as Ace. The story goes Simmons asked Ace to not release it, Ace told him to get fucked, the song was out for sale, he already recorded it. Eric Carr got his only vocal on this album and died before the next album. This was the worst of a band not really being a band and had not been for some time. Simmons and Stanley recorded pretty much individually and they took their songs and stuck a Kiss label on it. Simmons had been mentally checked out of Kiss for a while ... luckily with the next album, they became a band again ... briefly at least.
Peter Criss is my least favorite of the solo albums, he played stuff he liked, but it did not fit with a rock band .. his first 2 non-Kiss albums were in the same style. It did not help he was in a bad car accident before recording this that hurt his arms and he was snorting down tons of cocaine and God know what else around then.