What's your favorite simulators?

[Draupnir2]

The sims i spent the most time with are:

-IL-2
(its simply the best prop sim)

-Fighter Squadron-SDOE
(excellent physics, fantasic mods and add-ons, almost a sandbox with planes)

-Janes Longbow 2
(my first sim on a 3D graphics card, l loved those hellfires lighting up the grund in their path)

-Janes F15
(my first jet sim, and with groundbreaking graphics and detail)

OT:
The BF1942 with the Desert Combat mods. Not a sim, but i spent hundreds of hours online. Fantastic gameplay on very open maps.