Which GOP candidate has raised the most money from Wall Street? Obama
From Pravda (emphasis mine):
As a result, Obama has brought in more money from employees of banks, hedge funds and other financial service companies than all the other GOP candidates combined, according to a Washington Post analysis of contribution data.
Freudian slip aside, it appears that one way Obama makes himself look like he's more a man of the people than Mitt is that most Wall Street funding is channeled to the DNC, which also has higher donation limits, so that if you were to compare just what Obama's campaign raised to the Mittster's, then he's raised less. Sneaky.