Jihadists is the correct label. That label will always refer to the psychopathic religion they murder others in the name of, very important. This needs to be promoted.
"War on Terrorism" is such a misnomer, after all, terrorism is, as Robert Spencer said, a tactic, not an opponent, we fight opponents, we use various tactics in doing so. Time to get smart, use words correctly and clearly define our enemy, which "Jihadists" does. It puts the correct focus on our efforts, less confusion.