Juggernaut worth the upgrade ??

was there another item you had in mind that made the above tanks more tanky than juggernaut would?

There's really no other immediate viable option I can think of atm... The only other enchant could be the magus one, but I don't even think that thing is worth it for champions with minimal scaling... Maybe a fed Amumu would take it? The rest of the champs here have low scaling and are much better off taking the Juggernaut enchant imo.

I've been hearing it isn't cost efficient, but I tend to like it. Then again, I suck at this game.

It's worth it since Riot's pidgeonholed junglers into paying a third of its total cost just to farm the jungle in the first place. Paying the additional 1500 gold for the PvP stats it provides is indeed efficient (though completely lackluster, as it doesn't provide any of the passives or actives other 'normal' items give) given the fact that you need to buy a machete in the first place, but for the total cost of 2250 it, along with all the other finished items besides potentially Devourer, is complete and utter crap for the total cost in PvP.

2250 gold for ~2025 gold in stats and no PvP uniques is a joke (and the others are pretty much the same; the AD one is the same as 2057 gold spent on a Brulalizer + 2 Longswords, the AP one is a 2200 gold Morellonomicon minus the mana regen and Grievous wounds, and Devourer before stacking is just a 2500 gold Wit's End without the 500 gold worth of MR or the MR theft proc)

Basically, in theory you should buy it if you're a tank jungler because finishing it is efficient given the fact that you HAVE to buy Machete anyway, but in reality you should tell Riot to go fuck themselves and not jungle until they stop forcing junglers to deal with this Machete bullshit in the first place. Junglers already have to give up a summoner skill for Smite in order to effectively farm their 'lane' (which already generates less income than a real lane), there's no excuse for making them also pay gold to farm it.

Don't bother. Upgrade to an offensive option and build your tank from other items. Juggernaut sucks.