Stay 15% to 25% in levels behind the highest-level person in your organization, and never ever advance past level 150, if you want to be able to heal the widest range of people during battle - and thereby contribute the most you can to your organization.
It doesn't matter how big of a heal you can cast, if you aren't allowed to cast it on your comrades.
Proof is in the following thread; thanks Beaker for the chart.
http://forums.anarchy-online.com/sho...threadid=80263
Thanks for this nerf goes out, as always, to the Devs who can't think of anything better and install changes before they're tested.