Firstly the Yorktown is an enormous stationary target, it was clearly troubled by the swarm but was durable enough defensively to remain operational and for the Franklin to be able to mount a counter. The Enterprise was rendered defenseless rather easily and the crew was afforded no time to think or escape.
Secondly, it was Spock who 'defeated' Khan in a situation of a double-cross. The Enterprise had nothing to do with the destruction of the V, all that was required was to signal detonation of the torpedoes that Khan beamed over to the V. Spock could have been sitting on an Oberth class ship for all I care and would have achieved the same effect.
Additionally, we only witnessed a hint of what the Vengeance was capable of in combat, you cannot pretend that she 'gave everything she's got' at the Enterprise, you cannot ignore the 72 advanced torpedoes detonating inside the Vengeance which would have completely ripped lesser ships (and the Enterprise) into thousands of pieces. Where as the latter we have witnessed against the compromised Narada and the Swarm that the E unloaded everything, at least there we understand what the Enterprise's abilities and limitations are in combat.
We look at the swarm and they were scripted to be capable enough to overwhelm the Enterprise. In some crazy twisted alternative dimension , if Kirk commanded the Vengeance, I am sure the script writers would have really up-scaled and beefed up the swarm much further to get the same effect convincingly.
Secondly, it was Spock who 'defeated' Khan in a situation of a double-cross. The Enterprise had nothing to do with the destruction of the V, all that was required was to signal detonation of the torpedoes that Khan beamed over to the V. Spock could have been sitting on an Oberth class ship for all I care and would have achieved the same effect.
Additionally, we only witnessed a hint of what the Vengeance was capable of in combat, you cannot pretend that she 'gave everything she's got' at the Enterprise, you cannot ignore the 72 advanced torpedoes detonating inside the Vengeance which would have completely ripped lesser ships (and the Enterprise) into thousands of pieces. Where as the latter we have witnessed against the compromised Narada and the Swarm that the E unloaded everything, at least there we understand what the Enterprise's abilities and limitations are in combat.
We look at the swarm and they were scripted to be capable enough to overwhelm the Enterprise. In some crazy twisted alternative dimension , if Kirk commanded the Vengeance, I am sure the script writers would have really up-scaled and beefed up the swarm much further to get the same effect convincingly.