As I've got more into the Mass Effect 3 multiplayer and experimented with various different characters and powers I've noticed that many powers evolution trees often include choices between damage and radius/range.
Grenades are a good example of this but also lots of the biotic and tech powers such as Overload, Incinerate, Carnage, Warp etc.
Personally I've mostly tended to go with damage upgrades over radius but I'm wondering if that is a little short sighted. Are there certain power builds where it would be better to go for radius?
Can anyone describe some good power builds and play strategies they've used where favoring radius/range is more useful than favoring pure damage?