I agree with Barls except for the paste. Beans are more controllable and the paste could deliver a lot in a very short time and quickly become too much
Most of my info comes from talking to the reps for mj and safale. And it seems they use a version of ec1118 or sn9
As for what makes a ggod cider yeast, imo it is more about what you want from it. Do you want bone dry or sweet? Full bodied and ester profiles. If you can find a good rose yeast...
Fair enough, but unless you are looking to do an English or french cider I would stay away from wine yeasts. Imo for a bog standard cider it is best to keep clear of preservatives.