IMO, both accomplished what they wanted.
Nas wanted to be more emotional.
Jay Z wanted to be more factual and numerical.
Nas wanted it to be murder (basically, him taking a machete and mangling Jay's face)
Jay wanted to poke fun (basically, be condescending, sitting in his luxurious office not taking Nas seriously)
Nas' song was more focused, whereas Jay only really had one verse about Nas. Looking back though, Ether was a hot track at the time, but now it's nothing special. Ether was light on multi's and some of his insults were just silly "cockafella records and gay z".