Personally, I can't stand swapping gear that makes me blink unless I'm not meleeing, so I try to keep that to a bare minimum. On BLU, the only times I blink are when I cast Magic Fruit/Hammer (to swap in a crazy amount of MND gear), or MP Drainkiss if I'm not wearing the AF body already (and to put in AF head if fighting colibris). What I did through the levels was try using AF body full-time, and if my sword accuracy was suffering, I'd just wear the SH full-time.
For swords, I used Ifrit's Blade mainhand and Msk.Cmd. Falchion offhand until 72. Then I went to Dissector mainhand and Ifrit's Blade offhand. Now, I use Perdu Hanger mainhand (need Chief Sergeant rank and 40k IS for this) and Demon Slayer offhand. Perdu is definitely, without a doubt, the best sword you can use. I've seen people debate using Ifrit's Blade offhand over Adaman Kilij/Demon Slayer/Dragon Slayer, because they like the extra STR and Attack more than the extra 5 base DMG, 15 MP, 2 DEX/VIT, and killer trait. I'd say it's a matter of preference there, really. I completely ignored Wing Swords, but now that I look at them, they're not too bad either for their level.
We really don't get much in the way of ranged/ammo. Jr.Msk. Chakram +1/+2 is nice for conquest areas outside your nation's control. Fenrir's Stone is nice for soloing at nighttime. Bibiki Seashell is nice when soloing crabs or other aquans, and for Magic Fruit macros if you're not using a ranged weapon (like a chakram; since switching that out would reset your TP). Tiphia Sting is all-around good. It's what I use now.
We also have very few shield choices (for when you're /THF or /WHM or something). Tortoise Shield, if you can get one, is nice for the lower levels and level caps. Astral Shield, if you can afford one, is pretty awesome. Astral Aspis, if you can get one, is a nice way to save some gil from buying Astral Shield, and Genbu's Shield is pretty easy to get even if you're new to a sky shell.
For head, there's lots of equally good head options pre-70. MP hairpins, Attack headpieces, Empress Hairpin, etc. Voyager Sallet is awesome too, if you can get one (I never could ;
. At 70, Optical Hat is made of win, and at 75, Walahra Turban is awesome when you don't need the accuracy from O.Hat (which you shouldn't with a decent amount of other accuracy gear and sword/blue magic skill merits).
Chivalrous Chain is made of win; it never stops being awesome.
For earrings, Antivenom and Insomnia will last you until Suppanomimi and Brutal Earring (I wore Magnetic from 72-74, just cuz I had it for WHM).
For hands, Tarasque Mitts are really nice at 70. Dusk/Homam are nice too if you can get them.
For rings, I just wore STR rings the whole way through the levels. I didn't get Rajas til I was around 60-ish, myself. I had good enough accuracy without Woodsman/Sniper's. If you do need accuracy though, get one or two of those (Ulthalam's Ring is a nice alternative to those too if you have beaten ToAU).
For back, Amemet+1 is best thing you'll get, pretty much.
For waist, Potent Belt is win forever~
For legs, I wore Mithra RSE until Vendor's Slops. I eventually got Volunteer's Brais (Sergeant Major rank needed, 32k IS) to replace those. Homam is awesome too. Dusk is decent, but I wouldn't buy it just for BLU (like, if you had it from another job, then sure, use it, but otherwise I wouldn't get it).
For feet, I used Mithra RSE until I got Homam feet. XD Tiger/Feral are decent too. I think Denali feet are pretty nice too if you aren't a Mithra, and Hume RSE2 feet are awesome if you're a Hume.
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