To get down to brass tacks, can someone tell me whether or not a serrated edge/plain/combo is better or worse for EDC and survival sits? (I would prefer an answer that has as little opinion as possible)

Could someone either give me some advice or point me to a thread that discusses this?

Keep in mind, I am a Marine so I dont have to worry about PC workplace knives, etc and I go to the field ALL THE TIME, so this knife will serve quite a few different billets.

Currently, I carry a Spyderco Rescue and I want to switch to a Spyderco Endura so I have a drop point knife blade. I am open to other knife suggestions, but knives like the Sebenza are way too much for poor me. <img src="images/graemlins/confused.gif" alt="" />

Background info:

After combing this forum, as well as knifeforums, I have yet to find a non opinionated answer to my question about knife edges. I recently added my Sypderco Rescue (full serrated) back into my EDC. I loved the knife and I stopped carrying it due my receiving a Swisstool. But after reading this and other forums, I have started carrying it again so I have a knife I can get to more easily than my Swisstool. I want to replace it and leave the Rescue in my truck in my emergency kit there, and I want to stay with Spyderco as I am a huge fan of their knives and they are more affordable for me right now. My only problem is that I can decide which edge to go with. I know most of the pros and cons to each edge and I really like the combo edge of the Spyderco Endura. The issue is that I continually find postings about the waste of a knife with a combo edge (or serrated edge for that matter). Is this opinion or is it a matter of fact? I used my Rescue for years in the field and I did all sorts of work with it and I never had want for a plain edge.