Top schools in Alternate Dispute Resolution/Mediation/Negotiation/Arbitration..in the US or abroad?

Also.. good schools in Trial Advocacy and Litigation.

Thank you

In the US in ADR:
http://grad-schools.usnews.rankingsandreviews.com/best-graduate-schools/top-law-schools/dispute-resolution-rankings

in Trial Advocacy:
http://grad-schools.usnews.rankingsandreviews.com/best-graduate-schools/top-law-schools/trial-advocacy-rankings

Abroad, I've hear very good things about the LLM in Comparative and International Dispute Resolution from QMUL (Queen Mary University of London). They even have a School of International Arbitration.

Hope this helps!