Comparing the Rahall and Tomblin maps, it seems Rahall did worse in the heart of Southern West Virginia but better along the districts northeastern and northwestern edges?
Well, Snuffer was from Raliegh County, so I guess it made sense that he overperformed in the core area while Rahall had 3 decades plus of name rec to fall back on in the peripheral counties.
Rahall percentages, Raleigh county/districtwide (county home of opponent)
2012: 41% / 54% (Raleigh)
2010: 48% / 56% (Mingo)
2008: 60% / 67% (Mercer)
2006: 66% / 69% (Cabell)
2004: 49% / 65% (Raleigh)
2002: 58% / 70% (Logan)
1998/2000: Rahall only opposed by a Libertarian
1996: Rahall unopposed
1994: 60% / 64% (Monroe)
1992: 62% / 66% (Monroe)
1990: 48% / 52% (Mercer)
1988: 52% / 61% (Mercer)
1986: 69% / 71% (Raleigh)
1984: 63% / 67% (Raleigh)
1982: 85% / 81% (Cabell)
So it takes going back to 1982 to find a time that Rahall did better in Raleigh v. a Republican than he fared in the district.