STR = .45 Attack Power
VIT = .45 Attack Power + health

All your points go in VIT, meeting HP thresholds isn't a thing anymore. Get Fending accessories and meld STR on them (because it's still better than any secondary).

If you're not raiding, then don't worry about 4s vs 5s. Ideally, meld i230 stuff with 5s and hope that you didn't waste a bunch of gil/time when 3.3 rolls around.

If you don't need accuracy (which you shouldn't if you're not raiding), just stick to Lore stuff.

Green slots = 100%.