alleykat

"if you sacrifice your Defender's secondary (offensive) powers for more group-oriented play."

This seems to imply that offensive powers are not group-oriented. In my opinion, offensive powers, when used to benefit the group by ending battles more quickly, thus conserving the resources of the whole team for the next fight, can be just as "group-oriented" as buffs/heals/crowd control.

Doctor D'Arque - 14 Dark/Dark Defender
"The Doctor is in!"

Confetti - 10 Empathy/Psychic Defender
"Here comes the parade!"

Dies Irae - 5 Fire/Storm controller
"Nil inultum remanebit!" ("Nothing shall remain unavenged!")