Dunn beats him clearly in EFG%, TS%, AST/TO, TO ratio, Ast Ratio, PIE, PER etc... AST% and REB% are pretty much drawn. I dont know how the other advanced individual stats work since I dont know how to filter them by specific time period (maybe need subs to those sites), but I would bet Dunn wins them as well since he is just a better player.
Only team based advanced stats (like nba.com's ORtg and DRtg) are in favor of THT, which is explained by the fact that he played with better players.
Top 5 player lineup in minutes for THT
147 minutes with K. Olynyk - L. Markkanen - T. Horton-Tucker - O. Agbaji - W. Kessler
Top 5 player lineup in minutes for Dunn
31 minutes with K. Olynyk - K. Dunn - U. Azubuike - L. Samanic - O. Agbaji
I cant remember arguing with you about this but if you ever beat me in an argument I must have been in a burning fever or some other seriously handicapped state of mind so that excuses me from remembering such event.