Depends on what you want. I love the .221 Fireball because my barrel doesn't get hot and it's easy to shoot well. Others want flat trajectory and maximum resistance to wind. Others experiment with odd cartridges. Some want a sporter, some a varmint rifle, some a lever gun.
Hard to go wrong with a .222 Remington done right. I'd personally love to find a custom .17 Fireball built on a Sako action.
