MM - that all depends on where you are flying to and when you "choose" (not always an option) to book your ticket.
For example, I'd be the first to say that I am grateful to FR for re-developing the LON-SZG route at a time when no-one was flying there, as I fly there often for family reasons. I also fly more often with FR because they fly mostly from STN - by far the closest London airport for me.
FR also tend to be better for booking with about a month or so before the flight - others are better when you book at least 3 months ahead. Being self-employed, the former works better for me.
But whenever there is another airline option and the price difference is not that great, I would alwayc choose someone other than FR. Why? When FR are more punctual etc etc. Because they are an obnoxious company and proud of it.