Welcome aboard!

Choosing a knife is always based on what you think you will need to do with it in what scenario.

But as far as the "survival" part of your question goes, I like the "Light My Fire Swedish Fire Knife" as it combines what is essentially a Mora knife with a removable fire steel in the handle, thus covering 2 key elements in almost any survival scenario--knife and fire. There was a thread about it here some time ago, and I bought one. They are reasonably priced, and I may get another one to stash in the car. Here is a link:

http://www.amazon.com/Light-Fire-FireKni...edish+fireknife

No association etc., just pleased with what I think is a good idea and a good product.