Hmm, I don't agree with all of your complaints... But it wouldn't be the internet everyone agreed on everything, right?
1. This one is obviously subjective. I enjoy the 'old school' sounds, really... it reminds me of the older games. :3 I honestly would be a little put off if they used the anime voices (or them just saying their names), but hey, whatever Game Freak wants.
2. Oh my god, you're so right. I don't know how anyone's supposed to figure out a bunch of these evolutions work... and even with a guide, it's still a pain!
3. I can understand that. It's just like other games putting some kind of 'roadblock' or some other little thing so you don't sequence break everything... I mean, the badge thing is just like a guy standing in the way of the road saying "Oh no, I've lost my glasses!" you find elsewhere.
4. This... well, what's the fun in just killing everyone with a level 100 Charizard? If your Pokemon tend to get too high of level that they're not listening, it's a sign you're relying too much on one Pokemon, and it's making you change up your strategy a bit.
For me, one of the biggest complaints I had with the games was how long the battles could take and how boring they could be... sure, you could turn off battle animations, but then you just watch a HP bar creep down slowly, and that's no fun. I'm glad Black/White sped up the battles a bit and made the animations not take forever.