I think the "More Control" suggestion is the biggest one. It just isn't as fun as it should be to break blocks as a LB or rush the passer. EA really needs to work on this area.
I alos love the camera suggestion. I would love a defensive perspective camera like you have on offense. Why should we have to play from the QBs point of view while playing on defense? It would be fantastic if you could play from a view that was behind you facing the offense (at least while on defense). At least give us that option and it should be easy. I'd be willing to give it a try.