Andy,
I have small hand and somehow Delica doesn't fit me (handle wise). I found Endura handle fits better and Cara Cara 2 even better.
However many swears by it and if not because of the handle, jazzz has convincing video about actual use :
In fact his argument convinced Sal to make him a prototype to try.
Original thread:
https://www.spyderco.com/forumII/viewtopic.php?f=2&t=70607&start=200
I found manix 2 handle suits me better, but it is a heavily contoured one. It dictates how one should hold it. A GB1 handle is better, but probably that's beyond your length requirement.
In my use, a belly is useful, especially when peeling fruits, so I like Stretch better than Endura. Stretch handle is also very comfortable.
I think it boils down to what you cut on daily basis. A lot of man made product (packaging, tapes, etc.) then a wharncliffe Delica. The short blade allows for tremendous control.
Skinning, peeling, might be better served with some belly. Maybe also a Delica, normal version.
ZDP is highly recommended but VG10 is ok too with your sharpening skill.
For your described usage, either Delica or Manix 2 fits the need. Or probably a Tenacious (cheaper than Manix, basically similar size but more flexible grip). Spreading jam/butter is better done with leaf shape & wide blade. D4 wharnies is quite wide.
Edit to add: StartupSurvival on YouTube is also Canadian, and he also compared Delica, Tenacious and Cara Cara.