Is it better to upload a 30 minute not very well edited video or a decently edited 10-15 min video?

The scenario this pertains to is...if someone is making a review channel over episodes of series or a whole series as an entireity.

Pertaining to the youtube algorithm..will it bless/curse you if let's say 

A 30 minute review video has an average view duration of 3-4 minutes 

Or that review is edited down to 15 minutes but has the same view duration thus creating a higher percentage of total video viewed...despite viewers not watching it longer. 

Will the algorithm recommend the edited video more due to a higher percentage? Or will the unedited and edited video be the same in terms of how the algorithm gifts each video. 

2017-04-11T00:37:33.809Z