The title says it all. Vs zerg opponents, protoss will grab Templar tech as a little stepping stone, and just 2 base mass archon/zealot. I've only run across it a few times, and in 2v2, but each time left me spinning.
They never gave me trouble before, but with the post-1.3.3 range, and in these configurations where each opponent has 6 or more of them, it gets really hairy for poor bio mass zerg.
I would like the answer to submit the strongest zerg unit mix vs. Archon/Zealot. I would prefer an answer that does not rely heavily on micromanagement, as I am trying to determine a unit mix more than a tactical approach. For instance, dont say something like "mutas are the answer, but only if you keep them spread out".
Also, please avoid the standard "Dont let them get so many of those units" non-answer.
Best Answer
If they are archon/zealot heavy, roach infestor will work just fine. Roaches are beefy units that can take a lot of hits from the protoss, and the infestors can use fungal to keep them out of range anyway. Alternately, you can neural the archons and use them to help you take out the zealots.
Pure roach is decent but not fantastic against it.
Mutas work well if they don't have too many archons, but as you mentioned you do need to magic box them (although that really doesn't take that much micro if you know how to use the technique)
Broodlords are great if you can get them out in time.