Im biased, but I think the Duke roster is deeper than TN's....
Duke is ridiculously deep:
PG: Chelsea Gray/Chloe Wells
SG: Alexis Jones/Rebecca Greenwell
SF: Tricia Liston/Richa Jackson
PF: Haley Peters/Oderah Chidom
C: Elizabeth Williams/Kendall Cooper/Amber Henson
11 players who could all contend for significant playing time. Jones/Gray/Wells are all true point guards. If their freshmen are as good as advertised, they beat UCONN in terms of depth, although UCONN is more top heavy in talent.
Tennessee isn't deep at all this year:
PG: Ariel Massengale/Andraya Carter
SG: Meighan Simmons/Jordan Reynolds
SF: Cierra Burdick
PF: Bashaara Graves/Jasmine Jones
C: Mercedes Russell/Isabelle Harrison
I don't see Nia Moore logging big minutes for UT, and that's their entire roster. Starting 5 should be pretty solid (if healthy), Harrison will be a big contributor (whether she starts or comes off the bench) but besides those 6, there aren't any proven players or incoming freshmen who are expected to make a big splash.