That's kinda the wrong way to go about this. Ad hominem isn't good for any debate. And as much as I can't stand NQ he is correct here, Almace > Xcal for RDM the vast majority of the time due to ODD and CDD's crits. If you want a relic for RDM look into Mandau. Now if SE would go out and remove the 20% attack penalty off Req then this might not be valid.
In either case you'd want the STR sword in your off hand if going for maximum damage. fSTR and that much attack are nothing to scoff at, ESPECIALLY if your using Xcal which would be forcing you to use Req and it's -20% attack on a job without access to DWIII and Berserk simultaneously. There is no item you could switch haste out for attack that 3% would cover, the closest is either the body (Kudzu vs Shahir) or the feet (radgar feet maybe).
Now the wild card is that salvage gear is going to be upgraded here shortly. Morrigans has always been a hybrid melee / mage set that both RDM and BLU could use. SE said they would be doing something similar to what they did with Limbus drops so we can assume two paths, one that keeps the original piece and upgrades the stats, and a 2nd different piece with different stats. Now I hold out little hope for the 2nd piece but the current morrigans isn't bad at all, up the stats and toss on some haste and what not and you may yet be able to justify Eph sword. These could also alter the balance between CDC vs Req, the ONLY reason Req beats out CDC is due to RDM's limited access to DEX vs the ridiculous amounts of MND we can get. You see the exact opposite on BLU which has ridiculous amounts of DEX yet rather limited MND options, I was kinda disappointed when I was making my BLU Req setup for NNI. The moment SE releases more gear with DEX on it that RDM can use (new Meeble body for example) the balance between those two will chance and CDC might end up the dominate WS even without ODD AM.