Basicly after running a dozen or so bot matches and close to the same solo que matches, frankly Nasus does a better job in every way possible but for his /dance. Nasus will do more DPS, better AoE, better lane control, near the same health, targetable snare for escape and chase, and his ult doesn't bug 9 times out of 10.
**Recent stuff up here***
Bot matches (lol) are going well with the build, able to tower dive with great ease, take on wave after wave of creep without losing HP, soak up damage, so on so on.
Build order thus far:
Vamp Scepter (Early game survivability mixed with War's natural lifesteal)
Emblem of Valor (More lifesteal, health regen for your lane partner)
--OR Executioner's Call for the heal debuff, depends on enemy team makeup)
Boots of Speed -> Berserker Boots (Attack speed is important for the lifesteal)
Cloth Armor -> Madred's Razor (Kill lane creep faster, proc = high health steal, armor)
Chain Armor -> Atma's Impaler (More armor, War's natural HP adds to your DPS)
Warmogs/Force of Nature (Melee heavy team gets the first, magic heavy gets the second)
Madred's Razor upgrades to Blood Razor for late game tank nomming
This will no doubt be shuffled around and changed, but what I'm testing for now.
Summoner Spells: Cleanse and Flash. Originally thought of Cleanse and Ghost, but flash allows warps through trees and cliffs, rather nice.
Marks - Attack Speed
Seals - Health/Level
Glyphs - MP/5 (Takes some reliance off of golem)
Quints - Attack Speed
Random Thoughts: Possibly taking the Razor first in order to build the same as a Jungling warwick until 6, thus allowing a second lane to be soloed until then, give someone an extra boost until you rejoin for more official tankidge work.
Let me start out by saying I know Warwick will not be the ideal tank, and yes others do the job better, I know. However I really like the character, he has the POTENTIAL to fill the roll, and there are more carries than you can shake a stick at now adays compaired to tanks in PUBs. This is just a curious attempt at experimentation.
So, as a ganker Warick is going down the totem pole rather quickly.. His ult can be countered in more ways than I care to list, so on so on, pretty much everyone knows his state ATM. While that method of play is quite nice in premades, in pubs it's rather lackluster. While I do hope he'll be getting a patch, I was playing Nasus as a tanky sort of fellow, and thought about Warwick doing the same. Base healthpool wise he's nothing to sneeze at, and with HP items he can rival most of the normal tanks. What Warwick does have going for him is health steal + attack speed. While that can be easily shut down with stuns ect, cleanse, snare reducers, and his speed buff can at times counter it.
Basic idea was going to be zerker/Merc boots depending on how much CC they have, executioner's call for 18% life steal, crit, and heal reduction at a very cheap, easy to get early game price. Frozen mallet gives him a nice chunk of HP, and due to how fast he attacks, will keep them slowed even with the slight nerf coming to it. Alternative or addition to Execs is Starks, additional 20% lifesteal, AoE buff, faster attack speed, ect ect. Run speed around weakened heroes is nice if your lane partner gets them just low enough, and with the lifesteal alone (not counting stuns), I've had two groups of creep and an allister wailing on me, and I outhealed it with the occasional hungering strike. Able to towerdive due to how much HP I have, and a HS to nearby creeps can keep me going easy.
End Item build:
Executioner's Calling +/Or Starks Fevor
Berserker's Boots/Merc Boots
From what I've gathered on minimal testing
Very high health (Easy 4K+), mixed with very high lifesteal
Good tower push possibilities with speed boost buff
Anti heal + rapid snare
Fun in quick paced fights
Weak early game
Bad mana efficiency (May still depend on golem)
Anti heal will cut his survival in half
Only summoner spells for escape
Not the best in the attempted field.
Lack of AoE
Other items I have been looking at include the Tiamat (health regen, mana regen, splash damage for creep pushing, more damage = more lifesteal) or sunfire for bonus health and the AoE. Sunfire would probably be better for base health gain and the armor.
No doubt I'll be editing this post rather frequently, but feel free to add in your thoughts or suggestions. Never know unless you try, after all.