I think bitcoin is better than banks because with bitcoin we have full access and control, I do not like to waste time waiting in line so I hope that someday the transaction system is like bitcoin.
It will be nice if we could get a future like that but we need to be realistic banks are the most powerful entities in the world and they are not going to give up that kind of crazy power due to a new invention, so I think that the best that we can expect is that banks and bitcoin are able to coexist together, and since banks cannot destroy bitcoin either that seems to be the most likely outcome.