Claim first: I do not have measured numbers for either path, so I am not picking a winner. No kill-per-minute rates, no quest XP tables, no logged comparison between a clean questing route and a pure grind spot.
The two conditions worth separating before anyone compares runs:
- session length, short versus long, changes which path even gets finished
- travel time between quest hubs versus travel time to a grind spot
I have no data tying either condition to a winner, so both stay open questions for me.
Also worth naming, without claiming an effect: gear differences exist, for example the Compact Fighting Knife versus the Balanced Fighting Stick or the Unbalanced Fighting Stick. Whether any of those change kill time is a measured question I cannot answer from what I have.
Anyone sitting on logged data, addon output, or even a stopwatch comparison, post it with the assumption behind it. Session length matters, so say whether your numbers come from a short burst or a long uninterrupted run.