The Apache is Boeing.....The Apache is also combat tested...remember the gulf war? Cheaper yes....but also even effective.....how is the combat survivability for the pilot? how is the sound reduction and IR reduction? How is the anti FOD system? how can it manouvre on the ground?
But for the most realism...the engine isnt the best for that. When you fly a fighter.....you can easely pull max 12G or somewhat and the flight cumputer will do nothing against that...or like AOA isnt modeled
MS is nice and fun but, when you buy or download mil planes they just dont feel like mil planes because all the systems work like dogshit...nothing works and when you want FS to the max (realism) you will need to buy allot of addons!!
The Dutch AH-64D without the radar does this in every show.....;)
http://www.spottersplek.nl/mkportal/modules/coppermine/albums/userpics/10013/IMG_0296.jpg