A timely question as I made this very same decision while getting dressed this morning. I chose the LCC (m/a, sw). Here's why:
Blade shape and grind: The LCC offers a more useable blade shape, the grind is higher and the edge is consequently thinner. It offers better cutting performance. The SOCOM has a stonger profile for extreme uses and probably better penetration.
Ease of carry: The LCC is tip-up, which I prefer, the SOCOM is tip down, which I don't. The LCC is heavier (and I wish it were lighter). I find that despite its greater weight the LCC carries in the pocket better. The SOCOM is more accessible for a quicker draw.
Looks: I like the carbon fiber and Ti of the LCC (I really need to get a micarta one as well) better than the SOCOM.
Fit and finish: both are perfect. period.
Handle ergonomics: for utility chores (which is what I use a knife for) I find that the LCC fits MY hand better than the socom. It offers a fuller grip and presents the blade at a nice angle relative to the cutting surface, which is good for slicing and push cutting. The SOCOM offers a higher level of security during stabs and slashes, and is better suited for those tasks (which I hope never to have to use a knife for).
Edge durability: Both use 154CM at the same heat treat. Both perform awesome. Both take and hold an edge better than any other 154C</ ATS34 knife that I own. I don't know the specifics of MT's heat treat but for 154CM it performs as well as 154Cm treated by Paul Bos, high praise indeed.
Lock strength: Both have strong locks, but I think that the Microbar is a stronger and more secure lock. The LCC has a thick steel liner, which locks up tight, very secure for a liner lock. The microbar is like a vault, I would rate it as being almost as strong as the frame lock on my Sebenza and equal to the AXIS lock on my 710HS. But I really don't use a folding knife for any tasks which realy strain the lock. In fact most of my daily cutting tasks are done with a SAK, usually a non-locking model like the recruit or tinkerer.
Bottom line: Both are great knives. I find the LCC better suited for utility tasks and consequently my EDC needs. The SOCOM is probably better suited for defensive purposes, but as I have a Sig Sauer 9mm, OC spray and an ASP on my belt, and a shotgun in my patrol car I have tools better suited for a serious social interactions readily at hand, a knife would be my last choice......
For me the LCC is better. Which is better suited for you is a choice that only you can make. Handle both if you can.... either way you'll be making a good choice.
stay sharp,
Chad