I don't believe anyone can state with any certainty which would have been better for the ship, to hit a glancing blow or head on. While we know what happened with the glancing blow, what occurs with a head on collision is speculation on our parts. Loss of first two compartments, certainly. Third compartment, probable to progressive flooding. Fire, distinct possibility. Loss of electrical power for some time, probable. Loss of radio, probable. Massive casualties, certain. (this is before the sinking, as no one will be prepared for it, and will certainly overwhelm the ships medical capabilities) It MAY however, shock the command into accepting what a terrible dilemma they are in, and reacting more proactively to get boats into the water. My SWAG, if no fires break out, the radio doesn't break free from its mountings and is repaired in time to send a distress call, the death toll will be less. There is no way she can go down without a trace, simply too much time will elapse before she goes under, boats will be lowered, deck chairs etc will float free, in addition to the thousand and one other things that come up as a ship sinks.