I thing a good route is to start Red buff > kill the raptors > wolves > Blue buff > Scuttle crab and gank a lane. Usually smite the blue buff and scuttle, so you have full health before ganking. if you can't find a gank, ward the enemy jungle, maybe steal a camp, and go base.

Pros of WW after your tiamat, and cinderhulk, you have a massive jungle clear. Because of your passive(s), you don't have to worry about taking too much damage of camps. You don't need the smite instant health. And you get to lane and skirmishes super fast because of your W and passive. Great disrupter and efficient peel.

Cons: early game consumes a lot of mana. Early clear is mainly done with about 1/3 of healt, so you are sucetible to die to invades. First clear is kinda slow.

Zeke's is a good item if you have a GOOD adc and you need armor, imo, sinergizes well if you are your team engager or disrupter.
Mallet if you want the perma slow and its massive health bonus.
BOtRK if you are dealing with life stacking champions such as vladimir, anivia, chogath.
Black Cleaver if the enemy has a Massive tank such as nautilus, leona.