As much as I respect a lot of the work WT have done for the sim, you have the Heavy Division team making a 787 Dreamliner completely rewriting it thanks to Asobo unlocking the premium aircraft. It is going to be a real treat to see what they can do like what FlybyWire have done with the A320. It is defiantly going to surpass and make it the most realistic Dreamliner system wise and hopefully flight model wise. Quality wings who know tbh what they are up to but at least the Heavy Division will be a freeware.
If you want the simplicity of just being able to get the updates for aircraft directly from Asobo rather than going online and having to check for updates on aircraft, then maybe the WT 787 would be better for you, that is if they are going to do a AAU for the 787.