Seeing that the proper Alice's Cottage 9-10 compilations follow the 7 Alice's Mansion compilations (+ Alice 2010) and that the "Alice's Cottage" name is widely used on the english-speaking web, I chose to keep "Alice's Cottage" for the sake of clarity, as it's in a way the only "official" localization title we have. Plus the re-releases of the first volumes on other platforms that PC-98 also include some previously released games (such as "Intruder" and "Abunai Tengu Densetsu" on Yakata 1 for FM-Towns), so the series always were a mix of old, new and unreleased/revamped stuff.
That being said, as you can see on the screenshots (that are a bit old ^^), I had begun the project under the "Alice's Mansion" title before setting my mind on the current titling.
Truth is, chosing titles can be tricky or unsatisfying sometimes... The "Amy's Fantasies"/"Don't Call Me Amy" case ended up with me using the inaccurate, localized title because it was associated with the existing localization ; "Toushin Toshi" kept a Japanese title for the same reasons, although a translated title would have made more sense ; "Run Run Concerto" fails to keep the pun in the original title, etc...