1, 2, 3: All are A in the companies i have flown for.
However, especially for case 2 and 3 dual channel is a factor, as the SOP is to use dual channel on every approach, even if it is planned to be flown manually later on (same now on the bus btw). And of course we used VNAV takeoff as soon as 10.8a made it possible. Additionally, dual channel of course uses the rudder channel servo until another roll mode is engaged which makes it the preferred method during S/E go arounds, just be ready for the kick on the pedals when the servo disconnects.
Usually i got scolded during debriefing why i didn't use the autopilot earlier on the usual V1 cut. The go around with autopilot on had to be trained extra, as the usual S/E circuit demanded that the go around and second approach had to be flown manually, usually without a FD as well.