Tyranitar should be better over Hippowdon because of its wide move pool. Blaziken should be on Sun teams to abuse the increased power of Flare Blitz courtesy of eternal sunlight from Groudon's Drought. Find some other suitable Pokemon instead of Blaziken.
DW Garchomp? Could you list the EV spread, moveset, and nature? Also, do you happen to have a DW Politoed (w/Drizzle)? I'd also be interested in the Gliscor (Poison Heal ability, correct?), though I'd need to know the same details I asked for with Garchomp.