Just a few changes. Feel free to add to the list. These are my own personal opinions on what should be changed to balance the characters.
Kratos - Reduce over square to 20 ap from 30 ap.
Sir Dan - increase overall ap generation
Jax - increase overall ap generation (slighly)
Raiden - Reduce overall combo ap generation.
Toro - no hope
Kratos - Increase range of first hit in over square move.
But really i find toro fun to use and i win quite often too. His up circle has the short but sweet little three hit combo. His forward circle can home in on people with its ninja stars and teleporting attack. (plus its always fun to fly around the screen kicking people with forward triangle) then, lastly, his down circle form is just awesome for crowds.
But his square moves...well...yea those are crap. (or at least i havent found them useful)
i dont believe dantes guns are meant to be very damaging, I believe the only purpose I've seen that they serve is a link between 2 strings in his combos.
NOOB: a person that has been given bread but complains that it isn't buttered.
THERE IS NO SUCH THING AS SPAM, THERE IS ONLY REPETITIVE ATTACKS THAT YOU HAVE NOT LEARNED TO COUNTER