I have heard alot of talk back and forth  about reversible corners and reversible standard forms. It doesn't matter to me, you have to look at the form to set it anyway. What do you guys think ?

Reversible is good. Manufacturers think it's the best. They have been suing each other over reversibility for years.

Reversibility is a great feature both for the corners and the standard forms. If the first course layout is not done properly, you can be left with 2 left corners when you need a right corner (with a non-reversible system). Reversible forms can also minimize waste with any block that is cut horizontally (ie, below W&D openings). The cut piece would be discarded normally, but can be re-used when there is a reversible interlock. This can also give you versatility on building heights by using half block heights (ie, you can rip standard forms in half to reach desired elevation, rather than having to order half blocks).