Main theme of the supernatural and other occult occurrences in both series but Ghost Hunt has a more eerie feel and less comedic situation than Ghost Stories.
Ghost Stories focuses more on Japanese supernatural and folklore while Ghost Hunt on murders and some para-psychology ideas.
the first few episodes (and some of the ones after) are about haunted school buildings in Ghost Hunt, similar to the one in Ghost Stories. are both about those that "destroy" ghosts, though Ghost Stories is a lot more comedic in the English dubbed version.
Horror! Mystery! Adventure!! Ghost Stories is an anime highly similar to Ghost Hunt based on plot. Satsuki and her friends discovered ghost and spirits throughout the story and try to figure out how to get rid of them etc. Both are highly enjoyable and definitely resemble each other in the style such as ghost and mystery.
Both feature a bunch of kids experiencing ghostly adventures in a small town. However, do not underestimate these shows simply because they cater to kids. In their own way, both shows serve their purpose in scaring the audience.
Kaidan Restaurant makes use of the slice-of-life story-telling which lets your imagination run freely (and against you). Ghost Stories uses scary animated scenes, which despite the quality, works pretty well.
In Kaidan Restaurant, the stories are narrated by the friendly spooks themselves while in Ghost Stories, the kids are aided by a reluctant supernatural sidekick. Yet, the audience gets drawn into the tales anyway.
The protagonist in these both find a book that was used to seal demons. The monsters are based on Japanese ghost stories.
In Natsume Yuujinchou, the main plot was to release captured demons. In Ghost Stories the protagonist accidentally releases all the demons sealed in the book, and needs to find and reseal all of them instead. Both the mascot characters that help the protagonist is a demon in the shape of a cat.
Extremely similar stories~ almost annoyingly similar. Both protagonists have inherited a book containing the names of the youkai their grandmother/mother fought, with the slight difference that in Natsume Yuujinchou, the boy wants to release those youkai, whereas in Ghost Stories, the girl releases them by mistake and tries to seal them again.
They are both helped by strong demons which get by in a cat form, called Madara in Natsume Yuujinchou and Amanojaku in Ghost Stories.
Recommendation based only off dubs*
Both took the original show and completely changed the script for the english dub.
Both dubs are quite funny and somewhat inappropriate.
If you liked the funimation dub of shin chan definitely check out the ADV dub of ghost stories.
These are two of the funniest dubs out there. Both are episodic and rely heavily on gags and quips, and both succeed at making you laugh like a madman. Great liberties were willingly extended to the dubbing production of Ghost Stories by the Japanese creators, and these were taken with gusto. Don't miss either of these comedic gems!
When I first started watching Gakkou no Kaiden, the general theme really reminded me of Haunted Junction. I only watched the sub of Gakkou no Kaiden so I can't be sure but having seen clips of the dub, the humour between the Gakkou no Kaiden dub and Haunted Junction seem to be similar. As far as the sub goes Haunted Junction is a lot more comedy based but I personally think they're similar in a couple ways, though I enjoyed Gakkou no Kaiden much more.
Both Tesagure! Bukatsumono Encore and the dubbed English release of Gakkou no Kaidan feature heavy amounts of improvised comedy by the VAs. The dialogue is ad libbed in both to such an extent a number of episodes of each barely adhere to anything resembling a script at all.
English writers threw out the Japanese script and decided to go full comedy regardless of where the story goes. The result is a dub tailored to native English audiences that will laugh at the silly humor and jokes made seemingly at improve by the voice actors.
The infamous English dubs of these two shows can be described in many ways: atrocious, inconsistent, LOUD, overly dramatic, incomprehensible ghibberish, BUT ABOVE ALL, hilarious. The only reason to watch these shows is the for the dub, so if you found either of the dubs consistently hilarious, you'll find plenty of enjoyment and quotable lines in the other. Without the dub as their saving grace, these shows would remain the garbage that they are.
Gakkou no Kaidan is the horror version of Cardcaptor Sakura.
Two girl protagonists who lost their moms when they were very young encounter the supernatural during the school and have to fight it with a creature that guides them on how to do so. Sakura is the cute and childish version of the story, with Sakura catching all the Clow Cards, and Gakkou no Kaidan is the scary version with Satsuki putting all the dangerous ghosts into spiritual sleep.
Both series revolve around phenomena that managed to escape from their seals and must be sealed again.