Did a quick test on Corudoth.
https://www.youtube.com/watch?v=Py96jk2NflU
The test is 210 STR vs. 231 STR. I am using
https://wiki.project1999.com/Ancient...ched_Flamberge as my weapon. I have 34% worn haste.
Test 01 (210 STR) - 561 seconds to get him down to 80%. 37,794 Damage, subtracting ripostes. 67.3 DPS
Test 02 (231 STR) - 531 seconds to get him down to 80%. 37,303 Damage, subtracting ripostes. 70.25 DPS
DPS difference: ~3 DPS
Recorded highest hit with 210 STR: 250 Damage
Recorded highest hit with 231 STR: 258 Damage
Total number of 250+ Damage hits across the entire test: 11 hits
Total number of hits across the entire test: 496 hits
Percentage of hits that were max damage or above the 210 STR max damage: 2.2%
At level 60 with a ToV weapon and 34% haste, 21 STR appears to give about 3 DPS.
In the Magelo I provided earlier
https://wiki.project1999.com/Magelo_Blue:TestIksarSK - I am using Argent Protector and Silver Chitin Hand Wraps as my Weapon + Haste item. This is to show what a lower cost setup would look like for OP.
The ratio of Argent Protector with 22% Haste (SCHW) is 1.04
The ratio of Ancient Fire Etched Flamberge with 34% Haste is 1.40
The difference in ratios is ~25%, so a level 60 with Argent Protector and 22% haste would probably be doing around 50.47 DPS on test 1 and 52.65 DPS on Test 2. The DPS difference drops to ~2.2 DPS.
You would do an additional 8000 damage per hour at level 60 with 2.2 additional DPS, assuming you are auto attacking non-stop. Realistically this number is going to be lower at lower levels, due to lower skills. It is also going to be lower because you are not killing non stop. You will be taking breaks. It is also going to be lower because Corudoth is only level 5, so my DPS was higher on him. You would maybe get 2-3 more Kobolds per hour using Lune's mob. It also looks like my guess of roughly 2% hits will be max was correct.
This isn't going to be a significant boost to your leveling process. As I have stated before, min/maxing the leveling process is a waste, because the whole point of leveling is to get to 60. Once you are there, you no longer receive any benefits from min/maxing the leveling process. If a player is casual, it doesn't matter if they stop playing at level 42 or level 43. The speed isn't relevant to them. If a player wants to get to 60, they will want the best starting stat at level 60, which is INT because it is the hardest to cap.
If you are hyper concerned about getting a few extra kills per hour while leveling, you would go Troll SK. They have much higher STR, and access to Blood Ember Clickies, which will save you more time during the leveling process than Greenmist.