I don't think McCain's campaign would have targeted WV anywhere near as aggressively as Karl Rove did for W. It would stay Dem at least this time around.
I have McCain winning 279 electoral votes, with a few different states and margins than in 2000 IRL. As for the popular vote, I think Gore still narrowly wins it and the election hinges on MO, with McCain winning it by a razor thin margin of about 0.13% like in 2008.
Would have been a very interesting election, I think Gore might have ended up picking someone other than Lieberman this time around with McCain likely picking Mike DeWine for VP.
McCain would have likely been a more competent war leader during 9/11 and its aftermath and would have had an easy time winning re-election against Howard Dean, winning 348 electoral votes.