Best Gr 120 speed runs.

Hi guys! I'm at paragon 1600 and was working on a few different characters for solo push. After a while I was planning on focusing on paragon farming and was wondering if anyone had a recommendation for gr 120+ speed runs. I have a GoD Dh that runs under 2 minute for Gr 100, and Necromancer and Inna monk that runs under 3 minute. Which one should I focus for a faster and higher Gr speed runs?