Azagarth: Basically those two gear options come out nearly identically (assuming ~55% base haste and 500 attack). Also, you're not getting 1.5% hit rate, you're getting 1.5 acc, which will be .5% or 1% hit rate (1% for you since you said it rounded up).
It would swing more in favor of aurore/enkidu as mob defense drops, but even then it's unlikely to reach even a 1% total difference unless you're capping on some stat. Though I'm also assuming you're not going from 25% to 25%+ capped haste (ie: 252/1024 to 256/1024); if that's the case, then no, it's generally not going to be worth bothering with.
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