I have read most of the posts in this thread, and everyone has an opinion about the one they have and use regularly and for them that is the best/ultimate knife till a better one comes along. I write this not trying to insult any one about their personal choice, but I know for a fact there is an ultimate folding knife. It is the one that I can use without breaking it when I need it. If in an emergency it works and does what you need it to do, it is the ultimate knife. That being said I make sure that the knives I have and that will be in my hands are of good or better quality. If you stick with a quality knife that fits your hand and feels good, at least till you find the next one it is the ultimate knife (for you).
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Depend on yourself, help those who are not able, and teach those that are.