This is an easy one. Pilot A any day of the week. I am flying one of the more advanced regional airplanes out there and I can tell you that except for a bit more icing, major airport operations and copying a clearance I have gone a bit stagnant as far as what I was actually learning while being a CFI. I can say confidently that I have mastered flying a vector to a 20 mile ILS.

Being a CFI just prepared me for when things are not normal. Part 121 is a very safe operation and there are just fewer things that go wrong under the close supervision of the large team that oversees your operation. When you are a CFI you are flying at all edges of the envelope in varying weather situations in light singles and twins. When stuff is abnormal or goes downhill in a hurry you are all alone and forced to use your noodle to come up with a solution.

I repeatedly hear from checkairman who get new guys having their FOs freeze on the controls in simple abnormals like a gusty crosswing and literally just holding onto the controls and fixating on the guages and not making the necessary corrections to put the plane where it needs to go. Not saying that experience as a CFI will avoid all of these problems but it certainly lets you know that the plane is just a big 172 and it will go where you want it.

Of course as everyone else mentioned, if someone would hire me right seat in a falcon 900 at 300 hours I would have jumped on it in a second.

Why is it always the non cfis or guys with <200 dual given that always argue this point.