Cut the corn: Lay each ear flat on a cutting board and slice down one side to remove the kernels. Flip onto the flat, stable side and continue cutting until all kernels are off. (Corn is used raw. To cook it, blanch ears 2-3 minutes first, then cut.)
Chop the vegetables: Finely dice the red onion. Dice the cucumber and bell pepper into bite-sized pieces about the size of the corn kernels. Quarter the cherry tomatoes to match.
Add the herbs: Roughly chop the parsley and basil and sprinkle in. (Dried herbs can be used to taste if fresh aren't available.)
Add feta and mix: Crumble in the feta and stir well to break up the corn and combine everything evenly.
Tangy dressing: Whisk together olive oil, red wine vinegar, lemon juice, black pepper, salt, minced garlic, and honey. (Rice or balsamic vinegar can substitute for red wine vinegar.)
Creamy ranch: Stir together mayonnaise and sour cream (2:1 ratio). Season with equal parts salt, pepper, and garlic powder, starting small and tasting as you go. Add a splash of milk to thin to a dressing consistency. (Bottled ranch may be substituted.)
Dress and serve: Toss the salad with your chosen dressing. To serve both ways, divide the salad and dress each half separately. For oil-and-vinegar, dress just before serving, as it separates on standing.