FSBuild is the planner I prefer to use.I have used FsNav since fs98 and FsBuild since it came out,and FsBuild was the only planner that supported the Fly! series.And now with v2.1 it's my favourite :)Johnny"I'LL BE BACK"[div align=center]http://www.avsim.com/hangar/fly/josve/zone.jpg ][/div

I have both FSNav and FSBuild V2. I think they complement each other nicely. I plan my flight, fuel, etc. with FSBuild. Then I export to FSNav. I then use FSNav to make little adjustments if necessary.However, FSBuild is a Flight Planner....that's all its used for.On the other hand, FSNav can be used as a flight planner...but that's only ONE of its functions. FSNav has about 100 more functions, including a built in FMS that can control your aircraft, doing an LNAV and VNAV functions for you. It even does crossing restrictions and holds for you. So now I can't do without FSBuild, but I can't do without FSNav either....although I no longer use its FMS functions because most of my payware has FMCs and I recently bought the Garmin 530XP.I recommend both of them.