Which would be the better broadening assignment, AIT instructor or ALC instructor?

I would go for ALC instructor. Most of my money at Army schools is made from networking and learning from other classmates with different experiences. I always learn something from the training but picking the brains of peers and sharing information has been priceless.

ALC instructor.

My opinion and .50 cents won't buy you a Coke, but I don't think it really would make a difference in either teaching assignment. What you do in those assignments is where you will be able to separate yourself from your peers. Earning the "Teaching Badge" would be a good thing to do. To me, it doesn't really matter which one, it is what you do while you are there. A lot of Soldiers just check the block while there, but you could really separate yourself from your peers and that is how much time and effort you put into it. I found working with AIT students was rewarding. I never had a chance to be a NCOES instructor.

ALC. Every Instructor qualified ALC instructor that I've known (88 & 42 series grads) got picked up very quickly. Get that SQI in your records asap. If you can, get all 3 levels of instructor level qualifications.

AIT

AIT, most definitely.

I would say working with AIT Soldiers would be more rewarding as you can put your thumbprint on a whole new generation of Soldiers. I found my job as an AIT PSG (not the same as either of those!) very rewarding because of that fact. They are sponges of knowledge at that level and for the most part are very willing to learn. I'm not saying NCOs aren't...

ALC Instructor; words on the streets, at the promotion board, it trumps AIT Instructors.