IMHO 2 dex beats 11 crit + 15 SS all by itself, Det and acc bonuses are just icing on the cake.
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Main stat is weighted such that you need a real crapton of any given secondary stat to compete. Secondary stats are pretty garbage in this game, even with bard's bloodletter crit mechanic.
For PRE-COIL, get full Darklight, Toxotes Ring, and regular Relic.
For Gryphonskin pieces, the only one you should really consider unless you have oodles of cash to blow is an HQ Gryphonskin Ring with Vit IV + 2x Savage Aim III + 2x Savage Might III. You won't replace this ring until you start clearing Coil T5 and hoping for that Allagan ring drop, so it's a very long term purchase.
For Myth purchases, they're something like Ring>Pants>Gloves>Belt>Chest>Relic+1>stuff, but you can do those in whatever order you like. They're the best of the BRD AF+1 set.