My Ls does leves and we have tried all 3 regions multiple times.

Atm the in the order from best sp/hr to worst it is

Grid (Highest) => Limsa (Middle) => Uldah (Worst) Broken water is just garbage now.

Not sure if it was intentional or not, but those who still have not left Uldah need to... I guarantee you will like the results.

It is probably alot to do with the layout, but Grid leves are just faster to complete (many you can finish in like 2-3mins in a group and get over 7,000sp with aspect for doing it).