To toast or not to toast, almost as important a question as what to put between the halves. So for me it depends on a number of variables however my default is toasted poppy w cc. If butter on the go then no toast.
One of my favs: cracked peppercorn Turkey, egg whites and Swiss (or pepper jack if I'm feeling frisky) on an egg everything, toasted or not depending on time of day, year, and wind direction...
Cinnamon raisin always toasted w butter or walnut raisin cc when available.
Now what about flagels and squagles?