Dandelion greens tend toward the bitter side, a little stronger tha rutabaga greens, which are a little stronger than turnip greens. Not my favorite but good mixed with other spring greens. My favorites for spring are poke salet and creasy salad ( upland cress) Collards of course are as sweet as cabbage when winter harvested. For fall- winter I like in order of preference, mixed turnip and mustard, turnip, komatsuna, turnip rutabaga mix, winter radish greens, rape, ....kale The socalled mustard spinaches (komatsuna) like Tendergreen and Savanna are quite good. Collards are a loose leaf cabbage and in a class by themselves.