higher fame monsters give more points
but higher fame monster take longer to kill. plus they might kill you if they hit, since your running a mage, I am guessing your resists are not that great, you focusing on mana regen, lrc, lmc, etc.
lets say OL give 100 points each one you kill how long does it take you to kill one?
now let say a lizardman is 5 points each, how long to kill one? plus if a lizardman hits you, I guessing he will not do much damage. I am willing to bet that you can kill more lizardmen in lets say 30 minutes than you can OLs?
the faster you can kill, the faster your points add up.
go upstairs from the ol in despise and fight the lizardman spawns, just cast your evs or whatever you are using and run circles around them, the respawn fast enough and they are not going to kill you if you keep running unless you let 5 or more surround you.
but you should be in trammel so you can run through them if that happens.
I did keep track of how many monsters I need to drop one item when I was fighting Cyclopean Warriors, Titans, and Ettins in despise. I killed approximately 105 Warriors, 66 Titans, 30 Ettins for one virtue item. So it takes awhile.