I don’t see anything wrong with the Fiesta XX. It’s my preferred 4A yoyo.
There’s also been quite a bit of chatter regarding 4A, especially in October and November, where it seemed like every other thread was in regards to a 4A throw.
I’d say the Go Big is a good one. I also like the Shinwoo Griffin Wing if you’re after something low-cost but rather good.
I’m not a big fan of the Hayabusa. It’s not bad, it’s just I prefer something bigger. If modified with the off-string mod spacers, it’s definite upgrade that I’d recommend.
I wouldn’t recommend anything more costly than the Go Big at this point. Play with it for a bit and then I’d say you’ll know when you feel comfortable spending more.