Let's try giving an answer to this. First, letting the rage out...
I find it deeply offensive that Fate/Zero and sao are mentioned in the same sentence.
Ok, now to the answer. Either way is fine. There is no best POV, as it depends on how you go on describing the events in the plot. It is important to note that each perspective has its pros and cons, dos and don'ts and often, the choice boils down to which style you are more comfortable with. For example, writing in first person you need to watch out not to jump between perspective (realistically no one can mindread) etc while in third person you need to stay in the neutral and write it narrative instead of thoughts. Again, it depends on the plot itself and how you choose to present it.
That said, I'm curious. Why do you choose to capitalize some words in your posts?