Stopped by politifact.com today...

Results:

Sen. McCain had 26 lies, 82 truths:
True: 25
Mostly True: 19
Half True: 19
Barely True: 19
False: 22
Pants on Fire: 4
Flip-Flops: 1 Full Flop, 1 Half-Flip
http://politifact.com/truth-o-meter/personalities/john-mccain/

Sen. Obama had 18 lies, 94 truths:
True: 39
Mostly True: 23
Half True: 20
Barely True: 12
False: 18
Pants on Fire: 0
Flip-Flops: 2 Full Flop, 1 Half-Flip
http://politifact.com/truth-o-meter/personalities/barack-obama/