Liking these so far. Really want to see Bladesinger though suspect it won’t change much from 2014.
Other subclasses feel flavorful and fun. The only two things that really matter to me. I really like the regaining sorcery points on a successful counterspell.
Also think the Banneret’s leadership stuff is really cool.
The Bladesinger is very close to the UA.
Main changes from TCE:
Bladesong scales off of Intelligence per Long Rest - If you are maxing Intelligence it is better at most levels, worse at highest levels. If you are not maxing intelligence then just worse
Bladesong allows you to use Intelligence instead of Strength/Dex during Bladesong. This is a big deal as it opens a ton of weapon options you could not use effectively on a dex character.
Proficiency in all non-two handed, non-heavy melee weapons
You choose the skill you get proficiency in.
Can't use any armor in Bladesong.
Other than those things I think it is the same. It also starts at level 3 obviously.