Also, archetypes are now up. I expect (and welcome) that there'll be some discussion on these!

In brief, the best ones are Beastblade, Bladebound, Hexcrafter, and Kensai; whereas the worst are Greensting, Soul Forger, and Spellblade. A couple of them have level-dependent ratings; for example, the aforementioned Eldritch Scion gets quite a bit better at level 8, when it's allowed to spell combat without entering its focus.

This was the biggest and hardest section of the guidebook, so enjoy!