3V has extraordinarily good impact resistance and ductility at relatively high hardness and high abrasive wear resistance due to the high vanadium carbide volume fraction (one of the hardest carbides). The Delta protocol addresses its edge stability issues helping it achieve a durable edge at fine geometries making the steel both tough and strong in a knife edge application making the finished product an extremely useful highly durable cutting tool. Durable in both a large scale (the knife is practically unbreakable) and at a small scale (the edge will tolerate abuse without chipping or rolling). A side effect of the Delta protocol is improved corrosion resistance due to the free chromium making it nearly stainless.
Optimized AEBL is very tough for a stainless and has a fine edge stability almost as good as a simple carbon steel. It is very close to an old school simple steel (tough, easy to sharpen, takes a very keen edge) yet has good corrosion resistance. There are other more complex stainless with better corrosion resistance, but they're icky with that mushy crumbly edge that needs to be obtuse to keep from blunting when pressed into hard work. AEBL is a less expensive material than 3V and being a simple steel the heat treat process is a simple anneal, pre-quench, austenitize, cryo and tempers, which is less involved than the Delta protocol and more affordable. It's a good steel for non-knife-nuts because it is more adorable (edit affordable) and easy to maintain.
AEBL has good corrosion resistance compared to a carbon steel but it's not great compared to some other stainless, but this is necessary to retain its world class edge stability. Its edge retention is pretty good due to the high hardness, but it is not in the same league as Delta 3V because it doesn't have the abrasion resistance. It is easy to sharpen though and rewards a skilled sharpener with a fiendishly sharp edge with very little fuss. D3V can also get extremally sharp due to my fine grain, high hardness, uniform microstructure with minimal RA and other messy structures and 3V's ultra fine carbide, but it takes more time due to the resistance to abrasion.