To wear Angelics or not?
This was also a difficult choice for my Liberator, and after doing some testing I realized thats its worth it.
But what works for a Liberator may not work for a Zealot.
On my Libby my AR was very low about 6k with concentration and 10k with Blesssed aim. After puting Angelics(2 rings) I got 20k with conc and 30k with BA.
Well if you have maxed zeal and fan you should have sufficient AR.
IMO If you dont have a BIG problem with hiting people its not worth it to waste good mods just to have more AR that isnt really needed(If you need a little more try to get more from charms).
Now if You are having big problems with hiting people and you know that AR charms wont help you at all, Its a good choice to go with Angelics and i would go with two rings( you are already wasting your amy and ring slots, wasting another one for getting as twice as much AR is IMO worth it)
So the conclusion:
Angelics give you a HUGE AR bonus but waste many good mods, its for you to decide if you really need it.
When going with Angelics I would definetlly go with 2 rings.
Comparing your setups is hard for me because I dont know how much AR you have. If you could give me a sample of your AR then maybe i could figgure something out. Well if you have something like 20k on your first setup then I would rather not go with Angelics, If you are having less then 10k I would go with Angelics(2 rings).
Also check out my post where I had the same problem:
http://www.rpgforums.net/showthread.php?t=238882
Maybe it would give you an idea whether to go with Angelics or not.