I am fortunate enough to be able to use anything I want and I use fltplan. It has some features that are important to me such as PDC notification and eAPIS. It also does Garmin downloads if that is of interest. The W&B is also good. Jepps has a lot of good features that are interesting but I still like fltplan the best. Keep in mind that flight planning solutions are very much dependent on the user's needs. It is not "one size fits all."