3. Really bad levels 1, 2, and 3. A good example is poor Big Daddy. His level one couldnt kill anyone even if they were in the line of fire. His level two can only catch up to about one person, and his level three is somewhat ok. Of coarse you can see why you hardly ever see anyone play as him, and the people who do spam their triangle+down move just to get to the level three.
I just... I don't even... just no.