To each his own I guess, but to me I think spell speed is godly especially with how it affects HoT now. The arrow is amazing if you have to solo heal a lot as it allows you to confidently spam benefic to proc benefic II, which is an insta cast benefic II. For BLM, 0.0001s might not make a difference but when it comes to healing every fraction of a second matters because that fraction of a second could mean the difference between a dead tank and a live one. For WHM and AST, my secondary stat priority is SSPD, PIE, DET, CRIT.