A BSc will always open doors irrespective of the pilot job market, so I am pleased you are going to get one, ideally BEFORE your flight training. If it's in anyway aviation related this will help you during the ATPL theory.
Unless you wish to go down the Integrated route you must already have an ICAO PPL prior to starting your JAA/EASA ATPL Ground School.
Do you want full time or distance learning? as this will reduce your options.
In the end you must do what is right for you in terms of your own ability, time & budget. Do not be fooled by clever & slick marketing.
Your type of question has been asked time and time again on this forum so search the forum and do some more research.