Could anyone offer any comments on the quality and accuracy of the two
>kits, or are they the same mold?
It depends. The Minicraft B-52H was originally released by Crown in the early 1980s and repopped by Revell before Minicraft took over the molds. It represents an H as it was configured from IOC to the mid-1970s. The kit came with optional external stores: the AGM-78 Hound Dog, AGM-69 SRAMs, or Skybolt ICBMs. The current Revell AG B-52H was origianlly released by Revell in 1990 and is an all new mold, representing an AGM-86 AFCM configured H as of 1990. It requires a little bit of updating to make a current H, but is very doable. Both kits are nicely done. Fox One has a new decal sheet out compatible with the Revell AG H.