My BMS installation will probably never leave my hard drive until DCS has a stable implementation of a persistent dynamic campaign complete with cooperative mission planning and semi-reliable AI (both enemy and friendly).
DCS’ simulation backbone is a powerhouse- no doubt. BMS can’t compete with the areas of DCS that are well-matured and evolving (graphics, dynamic weather, flight dynamics, systems modeling) - it doesn’t have half the horsepower required. But when it comes down to how each element of the simulation ties together to create meaningful experience? BMS blows DCS out of the water (for $9.99 not on sale, by the way).
Maybe in a decade after DCS:W 3.0 is out and we’ve gone through 5 years of public beta for the dynamic campaign we can revisit the topic. But I’m not holding my breath.