I am sooooooo disappointed about Agave nectar! I was using it a lot! Stevia as well......

I guess I would have to say using fruit as a sweetener, either bananas or dried fruit such as raisons or dates would be the least controversial sweeteners.
It is confusing about the other sweeteners because one definitely gets different opinions.
Some say honey is not supposed to be heated up so would not be good for baking.
Maple syrup although natural is very high glycemic. I used to use it for baking instead of sugar but switched to agave nectar.
Succanat is lower glycemic than many other sweeteners but I was told by a naturopath friend that a very high percentage of people have a sensitivity to cane sugar and succanat is cane sugar.
I have heard good things about both coconut sugar and palm sugar but never tried them.