golems need more offensive capability. Give them some of those overpowered special traits that the juggernauts have.

They have a trait that gives +100% attack ffs. you can't compare to that.

This is one of those few cases where...uh...yeah, it's really pretty legitimate to say Juggernauts are OP. +100% attack? With Maul? And high HP? And customisable?

the best tanks in the game are high evasion heroes with lots of counterattacks.

in their current incarnation, golems can't really compare to that. There's a lot of things they need. For example:

• -Taking a leaf from Heroes of Might and magic, give them a rait that allows them to shield allies. A certain percentage of incoming damage to all adjacent units, is instead directed onto the golem (50% is a good value)
• -They need some kind of useful counterattacking weapon. swords on a golem are silly and illogical. maybe add a ridiculously heavy counterattacking mace, that only a golem can use.
• -support traits for the army - obsidian guard, shieldwall, etc
• -passive regeneration in tactical combat, to help them not get worn down
• -Some way to heal other units in the army (perhaps an opposite version of drain life - sacrifice HP to heal an ally)

some or all of these would make golems into a worthy thing to have in your army

You forgot "backswing", another +100% for a total of 60 base strengh [20 base+ 20(+100% Juggernauts )+ 20(+100% for another base ability)] and the ability to hit all the units that surronded the target.

I too think is too much (ah, they also cost less than a normal troops!), I think they can be OP (as intended), but more playable, without the second +100% and without maul.