Yet another "Best" thread . . .not really useful in my $0.02 worth of opinion.
IN my own case, my retired urban EDC is a Leatherman Wave, the Sharpe tools that I can deploy with one hand are a pointed plain edge with a slight recurve. Its less than 3" long. The other is a separated sheep's foot of the same length. There is a saw blade that needs two hands to open. Folded closed it can function as a Kubota or fist hammer tool.
I believe that for the same scenario (retired and urban) any moderately sized pocket folder with similar blade profiiles would be appropriate and useful. I do not see a fixed blade fitting into that scenario anywhere . . .but that is just me.
HOWEVER: If you are employed doing something that requires you to use a knife in heavy duty cutting, then something larger or even more aggressive in construction and profile might be a better choice, perhaps even a fixed blade belt knife. Depending on the gear permitted by one's employer, anyone involved in security work might want an EDC that is designed as a full on tactical knife.
If you are just a walking around civilien and you feel the need for a serious tactical knife, you should re-evaluate where you go, When you go there, what you are doing and who you are with. Then you might consider your EDC S A BACK UP TO A FIREARM.
If you are crew on a sailing charter boat, a substantial sheep's foot with an axillary spike could be the right tool for EDC. If you are a tow truck driver perhaps a knife with a seat belt cutting tool would be useful.
There is no "best" of anything . . .only good or bad choices.