I love Bladesinger so much but I should give the new UA one an Red.
It's cool that strike people with your Intelligence but Bladesinger still need Dex for it's ac, and the fact of this subclass in 2023 til now is better to be an HIGH-AC spellcaster rather than a magic-swordman since the main-class is the best caster wizard ever.
Nonetheless, new BS wizard not providing things like Mastery and only things it gives you are Int strike, all martial weapon prof.(but why I need them?),and more song uses. It's even worst-er for a swordman and even best-er for a caster.
And as always, If I wish to play a caster why should I use these dumb features and if I wish to play a magic-swordman tell me why I should give up my spellcasting? If I can cast a Fireball to deal everyone a 8d6 why should I deal only 2d8+5+1d6(if true strike) for a turn? The fact of Bladesinger is a paradox of playing a non-warrior and full-caster class and wotc doesn't give enough feature for you to give up casting and play a warrior.
Oh, btw, the word 2023 here means “not 2024 version yet”, my table used it a lot.