I have BBS now. And here's my opinion on it.
Super great game I LOVE it. But here are some things I want to throw out there.
I don't think its good to compare Aqua and Kairi anymore. I know that it was probably Nomura's intention to make them alike but he made their face so different.... just in case anybody doesn't realize Kairi has her set facial features now because well I mean seriously how much more is she going to grow...... and her face is just to...round to compare to Aqua's and the hair style is way to different. The most that their hair is the same is the bang in front and that's it..... gameplay wise. Aqua's the in between one in my POV. She's got some great combo attacks that can cause enough damage. But unlike Ven her combos aren't as many.
On Terra. He is awesome. I didn't really like him when I first saw him but having the game makes me change my mind soooo much. He's cool. ;) And gameplay wise he is powerful when you start off with him. But you have to remember as you continue the game the items and attacks you equip on you characters will determine who is more powerful.
Ven is just Ven. He's sweet he's innocent very much like a kid compared to the other two. In game he's got a lot of combo attacks. Unfortunately as usual combo attacks won't cause as much damage and larger attacks but it will afford more hits. By the time you get around level 9 or so though you should be fine.
SOME HELPFUL TIPS
Well I only got the game about five days ago and was on vacation so I didn't play it much. Now that I'm back home and still have summer vac I can play it a lot I would think.
So far I've learned that the lock on attack is VERY helpful in leveling up and good with the larger enemies. For example with the Bruiser its better to use a lock on attack. To fill up your focus bar target the smaller easier to take down enemies I.E. the Flad or at times the Scrapper. With such an easy way to level up it would be a good idea to level up quite a bit before facing a boss which can cut down the amount of time you spend on that boss quite a bit.