Thor is the best.
Your units do the most damage, attack fastest, run fastest, have the most armor, and the most hp if you do it right.
Battle boars are baddasses too.
I used to play as isis alot, but egyptians suck now, imo.
I never really make myth units, I just use the free ones that you get. But when I do make myth units, they're anubites as well, because they're fast, strong, and cool
I also make fenris wolves because they get stronger if they have more of them near them, not to mention they're already really strong.