I have a CS medium Voyager, tanto, CE, and about 8 Delica 3s & 4s. The Delica is a more useful knife to me because it's a better fit for my hand and is a better balanced knife IMAO. I also like the Delica's blade shape and steel better for the cutting tasks I do with them. VG10 sharpens up easily, gets very sharp, and holds it's edge for a good while.
I keep the Voyager (sharp and clean) in my dogs' First Aid kit. It works well as a light duty cutter in that role.
BTW, the oldest functioning folder that I have is a CS 2.5" San Mai clip point lockback from the mid-late 80s (IIRC). It's still sharp, locks up as tight as ever, has no blade play, and works as well as it ever did. I wish I knew the model name, but I forgot it as soon as I bought the knife.