I'll delete this post if you request, due to not wanting to interrupt the flow of your posts.

The lv5 spell Steel Wind Strike seems stellar, dealing 6d10 damage to up to 5 creatures within 30ft of you. Unsure if it deals half damage on a miss, though, that would lower the rating considerably if it just misses.

Thunder Step seems pretty darn sweet, dealing damage for a 3rd level spell as you teleport away.

Regardless, if UA or the DMG are allowed, Eladrins should rank near the top of the list of racial choices for a Bladesinger.