greetings
since you were flying Falcon i'll sugest go for DCS-A10C
Its a very realistic sim
if you like to go for helicopters ED offers DCS-BLACK SHARK2
and from Belsimtek here in this site you can buy the UH1-H [awesome]
also one that im flying lately is FC3 see details here http://www.digitalcombatsimulator.com/en/products/flaming_cliffs_3/
is a mid-rage fidelity simulation
that means that you don't have cklickable cockpits and the depth of the systems that DCS-A10C offers
but almoast all of them have 6DOF HD cockpits and soon we'll have AFM for the F-15C SU27[the SU25A A10A already own AFM-ADVANCED FLIGHT MODEL MEANING VERY CLOSE TO THE REAL ONES]
keep in mind that DCSW is free and is the heart of all of them
also is WIP
meaning that we will get new modules effects etc etc in the future
personally i say get all of them you wan't regreat it
ps.if you like WWII machines there is the P-51 available and the FW-190 in the pipeline
flying to arma and battlefield is for 16 years old kids
multiplayer is awesome
you can find a lot of people that flying everyday and they can help you starting