They look like what people call those "monster" pits. But either way they are both good looking dogs, the first one looks alittle he may be mixed. The way his nose is shaped (may be the picture) but it seems alittle long for an APBT.
Nice looking dogs. Both are undoubtedly pits by today's standards, but to me, these two are markedly different from the small and lean classic pits. I'm by no means an expert in apbt breeding or bloodlines, but I would guess that somewhere in their pedigree is another breed. Its purely conjecture, but many 'contemporary' pits look like they could have AB, dogo, DDB, or neo blood in them.