Both have their advantages and drawbacks:
TSRTS - Advantages: better sound, has some fantastic versions of songs (D&C, NQ, STH, SIBLY), Page is on fire
Drawbacks: Plant's voice is weaker, no acoustic set, Rock and Roll gets things off to a somewhat shaky start, and the setlist (imo) is inferior
HTWWW - Advantages: Plant's voice is in better shape, better setlist, Bonzo is on fire, acoustic set
Drawbacks: Sound is overly compressed, no NQ, and, with the exception of Rock and Roll and Whole Lotta Love, the songs which are repeats here (D&C, STH, SIBLY) are not as good as the versions on TSRTS.
Ultimately, I'd give the edge to HTWWW. TSRTS is good too, however (albeit I do think it is overrated).