Leave the technologies aside: Which company is a more compelling stock buy than the other?
While total values for Microsoft and Apple were close last spring, that's no longer the case. Since May 26, 2010, when Apple first inched ahead of Microsoft, Apple's market capitalization has risen from $223 billion to more than $306 billion (as of April 14). Microsoft's, meanwhile, has slipped from $219 billion to $212 billion.
Bottom line: Wall Street currently thinks more highly of Apple's growth potential and overall prospects than it does of Microsoft's. Investors were right last year, but only time can tell whether that outlook is still justified, given the company's high stock price.