I wholeheartedly recommend the Spyderco Military.
While the Ti Lite does have several uses, I found its downfalls to outweight the "pros" of carrying it. The quillions are sharp and virtually ineffective as guards, and as a Wave-style mechanism of opening, absolutely shred the lips of pants pockets. The blade lacks belly for utility chores that require it, and I don't like the edge geometry of such a short, hollow grind for some other chores. It will open letters, feed bags, and cut rope effectively, but compared with the fully flat ground, S30V Military, it's utilitarian (and defense) uses are limited.
The Ti Lite is also wider in the pocket than the Military. I feel that the Spyderco carries much better, and the handle ergonomics are better for hard use and self defense because of the choil to choke up on the blade and the curves and grippy G10 (compared to the Ti Lite's FRN or new aluminum/old titanium).
In regards to the blade, I feel that the VERY pointy tip of the flat-ground Military as well as the wicked sharp edge will penetrate equally or better than the Ti Lite, and also offers belly for utilitarian appeal and deep, hardcore slashing. The Military is also excellent at food prep and general slicing, something that the Ti Lite is not very proficient at.
In terms of locks, I do like Cold Steel's "leaf spring" which is essentially a liner lock, and is one of the best of its design at the Ti Lite's price point. I also really like Spyderco's liner lock, which is executed to excellent and very precise tolerances---I have had blade play in my Scimitar, and slight amounts with my 6-inch Ti Lite, while none of my linerlock Spydercos have suffered from the "Blade Play Plague."
I just think that the Spyderco would serve more uses for you as an EDC and as a self-defense tool should the need arise. It's a large knife, but I think it would gain less negative attention than something like the Ti Lite should a law enforcement officer decide to search you. I'm a big fan of Spyderco, but I've also been known to carry Cold Steel, so this is just my unbiased opinion. The Ti Lite has its uses and market niche, but the Spyderco Military is a superior knife in every way, even despite the price difference (and if you're looking at the aluminum Ti Lite, it's not much).
Happy hunting.
God bless.
KATN,
Wade