The link in my previous post is the AY Hong Kong website (HK is also my home). Scroll down to "Price list for additional travel services" and click on that. The first table has prices for extras from/to Asia.

The main difference is the extra bag with Pro, but it's cheaper to pay separately for that (and advance seating) with the Value, according to my calculations on the back of a postcard. The EC fee is the same for Pro and Value.