Well, you need to think why you're pruning them.
Look at what shape the tree is and have a picture in your mind's eye as to what you want.
Apples, pears etc - prune for form and branch growth in dormant period, i.e. Winter. For helping fruiting spurs develop, prune late July early August, the two techniques are different, in winter you can cut out whole branches, and if you just cut a branch back to a bud, that makes the bud grow vegetatively, i.e. long and branch-like in the next season. In summer, you are pruning to stimulate fruiting buds, so you don't cut so much, you really cut shoots that develop along a branch back a little only. these trees are ususally the ones that can be trained into shapes, cordons, espaliers, etc
Plums, peaches and other stone fruit you prune for all reasons in late summer, because they can get attacked by fungus if you prune in winter when the wounds don't heal so quickly. Peaches and some cherries can be trained to fans against walls etc, but plums do best grown as a bush form in my opinion.
Saying all that, if you have a branch ripped off, you need to neaten the wound by cutting it cleanly, it should heal off nicely in this weather even if its a big wound.