Just got both. I'll let you know what I think. :)

I also enjoy both old and new hardcore. I think it really comes down to the evolution of music in general. Every genre evolves into something that advocates of the original genre frown upon. Old hardcore is definitely more straight forward/ punk based, where post hardcore is more emotional/ experimental.

I don't know if I'd say it's more emotional but I agree that it's more experimental.

You're probably right, emotional isn't the best word to use. I just feel that many of the new post hardcore bands tend to be a bit more mainstream.

Yeah, old hardcore was definitely emotional. They just didn't express it through screaming.