Shane,
I would trust in the savvy of those who posted before me. For my own 2 cents, if I were going to buy at least one Military it would be the serrated model in 440.
I have several top quality knives now, thanks to the advice of the folks here on the forum. So far, there is nothing quite like the serrated Military.
It gives you the confidence to believe you can cut anything if necessary. The combination of light weight and cutting potential is more than worth the price of admission. There is no knife quite like it.
In addition to the serrations, Spyderco has been generous with a plain, "shaving sharp" front to the edge for just those occasions where you may need to push cut something if necessary.
If I were forced to make a choice on one knife for the "stranded on a desert island" scenario, this would have to be at the top of the list. That said, you should listen to those guys who have probably been through that.
(I'm sure they're a few on this forum. But, like my Viet Nam era Green Beret friend always says, if they told you about it, they would have to "punch your ticket").
[This message has been edited by JohnCD (edited 22 May 1999).]