Feorthas

Yeah, I just checked my numbers and, as you expected, I was wrong and my sheet says so ^^;; (holy crap, its results actually match someone else's, making it a somewhat valid tool. Awesome!)

Problem: I wasn't looking at the big picture, just like I was accusing everyone else of not doing. The benefit that you gain from +Hit is superior to +Crit, but not by much (0.25 AP) with 0 hit/skill at 2400 AP / 35% Crit. In fact, it appears to report as superior all the time, but barely (same 0.25 AP better).

Agi and Strength always report as a better option; ~1 AP for Agi and 0.6 AP for Str (again, maintaining the ratio with hit increases).

What I missed was that rogue items, which generally have +Hit on them, also usually stack agility, which is the most valuable stat for a cat past 2200 ap or so. Thus, these items quite often end up ahead of the feral equivalent items simply because they have more of a desired stat (Agi) and non-trivial amounts of stats that, while they aren't amazing, aren't bad.

(Current) Conclusion: Str/Agi are better than +Hit, +Crit is roughly the same (past 30%), and gear that stacks Agi usually wins 'best for the slot' (past ~2200 AP). Skill appears to be worth 3 AP though (1.3 better than hit!) so it may be completely and utterly sane to stack +Skill for boss encounters. Either that or it's reporting incorrectly :P (good chance).