This is a matter of choice and gameplay. In general Light Armor sets focus on will, fate and other non-DPS stats that help with a more passive (but active skill using) setup. Inthe other hand Medium Armor has more balance torwards agility for a more DPS type build.

If you like to solo a lot and you are a War Speech addict medium armor may be the choice for you.

If you prefer to focus on healing, groups and fellowships, be able to keep power and do some massive healings light may be the choice for you

You can always mix pieces depending on the stats you prefer.

Tags: armor, light armor, medium armor, Minstrel