Im really liking the A1 merc over A2 I am using an rouge merc with a faith bow ( perfect +2 / 15 great bow, rolled myself . I am liking her much better then an act 2 offensive merc. First, she doesnt go running out and dying to IM or nasty bosses. I took her through most of hell including cows and she only died maybe twice, and this is at level 68 with no life leech, and still missing some of my gear. Second, that finaticism is worth at least 2 auras, and you don't have to wait for it to activate. For insight I just made an iron golem out of a crappy halberd insight I had lying around. Works pretty well, but I like using the clay golem more, so it may have to go. The only problem is the bosses take a long time because of no crushing blow.