Sen. Bill Bradley (D-NJ)/Rep. Richard Gephardt (D-MO) 229 EV
Rep. Jack Kemp (D-NY)/Gov. George Deukmejian (R-CA) 309 EV
Bradley would have been a more popular candidate, but Kemp would have come across as a more legitimate heir to the Reagan mantle than did Bush 41.
This more or less, though I think Kemp is more likely to go down to defeat in 1992 than Bush as I don't see Kemp keeping a cool head during all the international changes of the early 90s, and I also see him coming off as unsympathetic during the recession, while with Bush it was just that he was out of touch.