1. Rick Snyder the Republican 43.3 %
2. Mark Schauer the Democrat 34.7 %
Methodology:
This was a Vanguard Public Affairs survey of the Michigan electorate, conducted by Denno Research. 600 respondents in the state of Michigan were surveyed between July 9-11, 2014, with a margin of error of plus/minus 4%, and the participation was stratified based on census data and past voter behavior. 120 respondents (20%) were from cell phone users, in an attempt to gather younger voters who do not have a land line. A screen was employed to include only those participants who said they would vote, either at the polls or by absentee ballot, in the November 2014 General Election. All numbers are rounded and may exceed 100%.
http://www.realclearpolitics.com/docs/2014/Denno_MI_0714.pdf