While I haven't done indepth comparisons between the three specs, I picked Artificer with no foreknowledge for my archer. At first, after seeing Sera and Cole's specs, I was disappointed in my choice. I still don't especially like the traps, but the passives are really good. Opportunity Knocks combined with Looked Like it Hurt from sabotage has made my archer a long shot spamming machine. My typical rotation now consists of long shot, regular shot, leaping shot, repeat. Occasionally I have to insert another regular shot in there. While it will never compare to the burst of Mark of Death or Fire Flask, it seems to be a fairly solid damage rotation, especially with Hail of Arrows. It really came together for me when I started gearing more crit on both myself and Iron Bull. Perhaps not the highest damage, but it's not terrible.