Two different kinds of commitment
Benchmade publishes LifeSharp: the company will re-sharpen your knife to a factory edge free for the life of the knife, and the service includes cleaning, oiling, full inspection, hardware adjustment and a tune-up of the deployment and lockup. You pay shipping in; they cover the return.
Spyderco warrants genuine products free from defects in material and workmanship for the life of the product, excluding loss, theft, accidents, abuse, misuse, improper handling, alterations, neglect, improper sharpening, normal wear and tear and unauthorized repairs.
One is a service; the other is a warranty. On a product consumed by maintenance, the service is arguably the more valuable commitment.
The lock is where Spyderco wins
The compression lock wedges a leaf of the liner between the blade tang and a stop pin. To close it, you push the leaf from the spine side - which means your fingers are never in the blade’s path.
A liner lock requires you to push the liner aside from inside the handle, with the edge closing toward your thumb. The compression lock removes that entirely, and it is the single best safety design in folding knives.
Benchmade’s AXIS lock is also excellent - ambidextrous, strong and smooth - and closes with the fingers clear if you hold it correctly.
Weight and build
The Bugout is remarkable: S30V steel at 56 grams, which is lighter than most knives half its quality. The trade is thin Grivory handle scales that flex perceptibly under a hard grip, which some people find disconcerting.
The Para 3 is heavier with solid G-10 scales and a more reassuring build. The Delica 4 splits the difference at 70 grams with FRN scales, VG-10 steel and a back lock, and it has been in continuous production since 1990 - which is its own durability argument.
The steel trade
S30V and S45VN hold an edge far longer and are considerably harder to bring back by hand. If you send knives to Benchmade under LifeSharp, that is irrelevant and the hard steel is pure upside.
VG-10 on the Delica dulls sooner and comes back on any stone in a few minutes. For someone who sharpens at the kitchen table, that is often the better companion.
Note that Spyderco excludes improper sharpening from its warranty - a reasonable exclusion, and one that makes Benchmade’s free professional sharpening look even better.
The verdict
Benchmade if you do not sharpen your own knives. LifeSharp is worth hundreds of dollars over a knife’s life and it comes back genuinely better than you would get it.
Spyderco if you do sharpen, and if the compression lock’s safety matters to you. The Para 3 is the better-built knife and the Delica is the better value.
Both are excellent. This is one of the few pages on this site where there is no wrong answer, only a preference about who does the maintenance.