There is literally nothing better about the first generation games, you are just a different person and are speaking out of nostalgia. I can't even make it to Brock nowadays before getting bored and giving up.
I just ordered White 2 for myself and I've never been more excited for a Pokemon game because I can't wait to link it with my Black 2 and play Challenge Mode.
The only big thing Gen 5 is missing are secret bases, which Gen 1 didn't have. There were too many bugs and too little features in Gen 1 for me to consider it better than any other generation.