All the danmei novels I've read that I gave 4.5 to 5 stars. They are listed in order from highest to lowest.

Rating system: 1-10 score for each of these categories:

Character — hopefully self-explanatory

Plot — is the plot good and is it well paced?

Language — quality of the writing; may not be super relevant to you, since I'm reading in Chinese

Premise — if you sum it up in 2-3 sentences, does it sound interesting?

Logic — are things believable and consistent within the context of the story?

Interest — basically how willing I am to give up my sleeping time to read the book lol

Then I average all the scores and if it's 9+ it's 5 stars; if it's 8.5-9, it's 4.5 stars. 

Note: Reading these in Chinese, so I don't know anything about the translation quality or completion status of the translation.