In the late 24th century, it was a tie between the Prometheus class and the Sovereign class, but the ones with quantum torpedoes, such as the Enterprise-E. The Prometheus class only needed a few crewmen to operate due to automation, and it was built for combat. It had phasers, photon torpedoes, ablative armor, regenerating shields, multi-vector assault mode (splitting into three pieces, making a small squadron out of one ship, all warp capable), and could easily travel at warp 9.9 for sufficient periods of time. Sovereign class star ships were huge, had 16 phaser arrays (some of them on the nacelles), a front quantum torpedo launcher, three front photon torpedo launchers, and six aft photon torpedo launchers. Sovereign class star ship were the most heavily armed.