I as well will disagree. Alice in Chains was a great band, and I think everyone will probably agree that the members were more talented than those of Nirvana. However, there is little variety in Alice in Chains. Facelift is a pretty boring album. Every song sounds very much the same. And Layne Staley moaning a long vowel sound for several minutes wears pretty thin after a while.
They're two of my very favourite bands, but I like Nirvana more.