I've been in the cabling industry for about 12 years as a tech, PM, estimator, and consultant. In all of this time I have rarely seen a 568A install.
This could be because I'm originally from California (just moved).
I think it is more of a regional thing. I hear that on the East Coast 568A is popular.
Both standards are a straigh-through pinout configuration. As long as both sides are termed the same way you will have connectivity.
Most patch panels and jacks these days have color codes allowing either method. Some of the older patch panels have the color-code on the actual plastic 110 IDC terminals. If you have one of these patch panels then you will want to wire it according to the displayed color code. Flipping the orange and green in this instance could cause confusion to the next person who sees it.
