Sorry to break it to you but no one knows and even though everyone wants to, no one has the patience. Hopefully, on day, someone will though. That person will not be me. Also it would depend on everyone's opinions on how fall resistant they are even if someone did understand what the numbers even really mean.

sorry for late response, [CreatureTemplate.Type.WhiteLizard] = 3,
[CreatureTemplate.Type.Fly] = 1,
[CreatureTemplate.Type.Leech] = 1,
[CreatureTemplate.Type.SeaLeech] = 1,
[CreatureTemplate.Type.Spider] = 1,
[CreatureTemplate.Type.GreenLizard] = 5,
[CreatureTemplate.Type.BlueLizard] = 2,
[CreatureTemplate.Type.BlackLizard] = 2,
[CreatureTemplate.Type.YellowLizard] = 2,
[CreatureTemplate.Type.CyanLizard] = 2,
[CreatureTemplate.Type.RedLizard] = 3,
[CreatureTemplate.Type.Salamander] = 3,
[CreatureTemplate.Type.CicadaA] = 2,
[CreatureTemplate.Type.CicadaB] = 1,
[CreatureTemplate.Type.Snail] = 1,
[CreatureTemplate.Type.Scavenger] = 2,
[CreatureTemplate.Type.VultureGrub] = 1,
[CreatureTemplate.Type.Vulture] = 4,
[CreatureTemplate.Type.KingVulture] = 5,
[CreatureTemplate.Type.SmallCentipede] = 1,
[CreatureTemplate.Type.Centipede] = 4,
[CreatureTemplate.Type.RedCentipede] = 5,
[CreatureTemplate.Type.Centiwing] = 3,
[CreatureTemplate.Type.TubeWorm] = 1,
[CreatureTemplate.Type.Hazer] = 1,
[CreatureTemplate.Type.LanternMouse] = 1,
[CreatureTemplate.Type.BigSpider] = 2,
[CreatureTemplate.Type.PinkLizard] = 2,
[CreatureTemplate.Type.SpitterSpider] = 2,
[CreatureTemplate.Type.MirosBird] = 5,
[CreatureTemplate.Type.BrotherLongLegs] = 5,
[CreatureTemplate.Type.DaddyLongLegs] = 6,
[CreatureTemplate.Type.Deer] = 7,
[CreatureTemplate.Type.EggBug] = 1,
[CreatureTemplate.Type.DropBug] = 2,
[CreatureTemplate.Type.BigNeedleWorm] = 2,
[CreatureTemplate.Type.SmallNeedleWorm] = 1,
[CreatureTemplate.Type.JetFish] = 2,
[CreatureTemplate.Type.BigEel] = 7,

THE NUMBERS MASON! WHAT DO THEY MEAN?