I don't like building planes but I like writing funky trees codes to make some planes flies well
here are some codes I've made:
Fighter
Pitch & Auto Trim Control(5deg/s max)-0 pitch input to make it auto trim:
clamp(((smooth(Pitch,1)+clamp(PID(Trim/20*clamp01(Pitch=0),PitchRate/100*clamp01(Pitch=0),1,15,0),-1,1))/clamp((((IAS-100)/100)*clamp01(IAS>100)+1),-100,100)),-1,1)

New version(Gforce control)
clamp(((smooth(smooth(Pitch,1)-smooth(clamp01((abs((PitchRate*(pi/180)*TAS)/9.80665)+abs(rate((PitchRate*(pi/180)*TAS)/9.80665)/20))>9),1/clamp(TAS/50,1,20)+
clamp01(abs(PitchRate*(pi/180)*TAS/9.80665)-9))*abs(smooth(Pitch,1))*sign(PitchRate),1)+clamp(PID(Trim/20*clamp01(Pitch=0),PitchRate/100*clamp01(Pitch=0),1,15,0),-1,1))
/clamp((((IAS-100)/100)*clamp01(IAS>100)+1),-100,100)),-1,1)

Roll 360deg/s:
clamp(PID(Roll,-RollRate/360,1,0,0),-1,1)

VTOL(AG1,Throttle&Brake to control,5m/s max)
clamp01(PID(smooth((Throttle-Brake)*clamp01(Activate1),0.25),rate(Altitude)/5*clamp01(Activate1),1,1,0)*clamp01(Activate1)+Throttle*clamp01(-Activate1))

Bomber / Transport Autopilot(height/pitchangle)-must be use on rotators and use with auto level together
Climb Rate 30m/s max/Pitch Angle 30deg max(AG1 to switch):
clamp(PID(clamp(PID(smooth((Trim*2+Pitch)*clamp01(Activate1),0.2),-rate(Altitude)/10*clamp01(Activate1),0.5,1,0),-2,2),-PitchAngle/15,0.5,0,0)*clamp01(Activate1)
+PID(smooth((Pitch+Trim/2)*clamp01(-Activate1),1),-PitchAngle/20,1,0,0)*clamp01(-Activate1),-1,1)-PitchRate/20

Auto Wing Level(60deg max):
clamp(PID(smooth(Roll,0.2),-RollAngle/60,2.5,1,0),-1,1)

Helicopter Auto/Manual Hover(AG1,10m/s max)-use this on collective pitch:
clamp(PID(smooth(VTOL*clamp01(Activate1),0.25),rate(Altitude)/10*clamp01(Activate1),1,1,0)*clamp01(Activate1)+(VTOL+1)/2*clamp01(Activate1=0),-1,1)

Pitch Axis(LG activate,brake to hover):
PID(clamp(smooth(Pitch,0.5)-smooth(Brake*clamp01(GS)*cos(AngleOfSlip)*abs(cos(AngleOfAttack)),0.5)/4,-1,1)*clamp01(LandingGear),-PitchAngle/30*clamp01(LandingGear),1,1,0)

Roll Axis(LG activate,brake to hover):
PID(clamp(smooth(Roll,0.5)-smooth(Brake*clamp01(GS)*sin(AngleOfSlip)*abs(cos(AngleOfAttack)),0.5)/4,-1,1)*clamp01(LandingGear),-RollAngle/30*clamp01(LandingGear),1,1,0)

Turret:
Range adjustment(max 10km,90deg range of hinge,1500m/s muzzle velocity)-use cockpit to aim or this code will not work correctly
(asin(((10000*cos(PitchAngle)+((10000*sin(PitchAngle))/(10000*cos(PitchAngle))))*Throttle*9.80665)/(pow(1500,2)))/2)/90

Horizontal(no limited (yes the shortest one)):
sum(Roll/2)

Horizontal(no limited+5x slower turning(AG1 to slow down)):
sum(Roll/(2+8*clamp01(Activate1)))

Horizontal(limited):
smooth(clamp(sign(Roll),-1,1)*clamp01(Roll!=0),0.5*abs(Roll))

Horizontal(limited+5x slower turning(AG1 to slow down)):
smooth(clamp(sign(Roll),-1,1)*clamp01(Roll!=0),(0.5-0.4*clamp01(Activate1))*abs(Roll))

Vertical(limited):
smooth(clamp(sign(Pitch),-1,1)*clamp01(Pitch!=0),0.5*abs(Pitch))

Vertical(limited+5x slower elevating(AG1 to slow down)):
smooth(clamp(sign(Pitch),-1,1)*clamp01(Pitch!=0),(0.5-0.4*clamp01(Activate1))*abs(Pitch))

Auto turret(1.10 update):
horizontal:(rotor:150deg,muzzle velocity:1500m/s)
smooth(clamp(TargetSelected?(deltaangle(Heading,TargetHeading)+rate(TargetHeading)*(((1500*sin(asin((TargetDistance*9.81)/(pow(1500,2)))/2))/9.81)*2))/180:0,-1,1),0.3)

vertical:(rotor:10deg,muzzle velocity:1500m/s)
smooth(clamp(TargetSelected?(TargetElevation+rate(TargetElevation)*(((1500*sin(asin((TargetDistance*9.81)/(pow(1500,2)))/2))/9.81)*2))/10:0,-0.5,6.5),4)

just copy and paste on your craft and test. These codes should be work on almost all crafts