So you wonder why would I build nasus hybrid..
Get in a match and you will see. This strat is so op and can dominate everything if you play it good, the key is farming, get stacks, get 100 stacks in the first 10 minutes if posible. Til minute 15-20 farming is 10 times more important than killing. Stack your q and dark harvest and you will destroy.

Why this items and not others huh?
Cinderhulk
Get it early on to get some tankiness, it will help a lot
Stormrazor
The best item and the most useful in this build, the strategy is that you will deal more that 800 damage with q crit in minute 15 you just need to q then wait like 3 secs and q again, if you are in ult or you w the enemy you can wait easly 3 secs cause they cant escape you plus is quite shocking when more than half your hp went down so easy so they dont really know how to react.
Boots
You need to build tabi vs heavy ad, treads vs heavy ap
Trinity
Is too op to not get it, gives you health, mana, damage, atack speed, cdr wtf do you want more
Zhonya
The only ap item in the build, why? You need to have an escape plus jt gives you armor aaaaanddd your w and e are more effective (w is kinda ******ed)
Guardian angel
You are ****ing unkillable.

Ok so... Why dank harvest?
Domination on nasus is not the best option neh? But in the jungle... Is sooo op
Dark harvest
You need to stack your q so another thing to stack for some damage will not be a problem (dark harvest is needed for this build, i strongly don't recommend this build without dark harvest)
Taste of blood
Life steal (thats all)
Eyeball
More damage
Ravenous
More health
Ok so i tried precision and resolve secondary the thing is if you want to be tanky try resolve if you want to fight take precision is all good. Precision take triumph and alacrity, resolve planting and second wind.

I didn't experience all the junglers so I will update as fast as I can.

Spirit visage
If they have a fed ap or they have like 3 heavy ap get this thing over guardian angel.
Stattik shiv
If you want you can get it over storm, or instead of trinity if they have really squishy champs.
Dead mans plate
Get it instead of guardian for some tankiness and speed.
Thornmail
If they have some really heavy ad (like trynda and yi)
Warrior
If they have squishys just build this, cinderhulk is good but this is better if you want oneshots (Build it only vs 4 squishys not less)

I will uptade this more often, but for start is just good. I am working on a top lane build.