Are both too weak.
The widow has about half the armored's dps, but that's fine, because it also has excellent engine damage and paralyzing tractors. The problem is its health, given it has to be at least near the battle. That, combined with the extremely irritating tendency of its tractor victims to get off a shot before paralysis sets in, make the widow effectively very fragile.
Proposed: stop the ships from firing before paralysis, if possible, and double the health.
The regen golem is near worthless. I rarely bother to even repair them, if I should happen to capture a planet with one for another reason. Its dps is nothing, its health middling, and its main purpose too niche to be useful. Because repairing the golem is usually more expensive than replacing whatever unit was manually, it's only really useful in key battles and maintaining a reclaimed fleet. In key battles, it is worse than any other golem, especially given the AI's preference for targeting golems.
And the fleet of reclaimed ships can be saved with careful conservation/micro anyway.
Proposed: give it actual dps, at least 25000 (a quarter of the armored), and make that damage reclamation. Bump its regen time down to half an hour, or fifteen minutes. Halve its cost.