Seroquel and Abilify are pretty new meds. Abilify is among the newest of its class of meds. Their patent has not expired yet, and that is why they do not have generic brands yet. Most of the anti-psychotics used today are fairly new, and do not have a generic.
I can't really say what is a good med or not, for there are many of choices and what works for me may not work for you. That is a decision that you will have to make with your doctor.
Best wishes on your search!