If its the same holiday, same departure airport, more or less the same flight times and with a known safe company [ as can be ] id go with the cheaper option .
Prime example available
last friday ,.from gatwick
Sunshine uk 14 nights b/b 20kg bags & and transfers to Kann Hotel 8th june £664 total for 2 persons.
travel republic same date ect ect as above £768 total for 2 persons..
i know which one id go with