I am unsure of what daggers to use here. Seeing as the Spiritseever has the Sha Touched Gem and the extra slot where I put one of my 320agi gems. I know I probably should be able to figure this one out myself but I figured it would be better to ask. Thanks.
Does it take everything into consideration? Like the Sha Touched socket etc?
To save you a bit of time if you start picking up 516 or 522 daggers - the socket makes the sha-touched weapon OH competitive with items about 30 ilevels higher. When you start seeing 522s, then you should check ShC again, but for any intermediates - like 510 daggers - stick to your 491 OH.
Also, depending on what stats you want depends on which LFR ToT dagger you go with. Best bet would probably be the setup you have equipped in the screenshot because you are using the VP trinket with the god awful amount of hit. Side note, I don't see Rupture on your bars. It looks like you might have it macroed into Shroud?
The H scenario dagger is also better than the spiritsever I believe.
The initial comparisons we did when it was revealed the dagger would exist showed it as under Spiritsever. I don't know if that's still the case - but they're really really really close either way, and upgrading/enchanting for that minor of a benefit when other items from H Scenarios would be real upgrades - would make it a waste of time. If you get 1 516 dagger, mainhand it. If you get a second, vendor it unless you've upgraded every other piece of gear and don't need VP anymore... then do a sim check.