I've used both kinds to catch stripers and Lmb. But I find my self using the ribbed ones more often. Being that all keitechs are salt infused they have a slower sink rate, added the ribs they have more water resistance resulting in a even slower sink. Also the ribs produce more water displacement and vibration, adding to drawing power. As for size I've caught with all sizes. But for simplicity the 4.8 size is great for anything. Color wise, white was always my choice for stripers and for Lmb black, bluegill flash and black/white are killer.