I like Jeb, he is a HUGE improvement over Lawton Chiles. But he isn't electable to the Presidency, and attaching him to Mccain as VP won't make Mccain any easier to stomach.
You're right, remember the media has long told us that people don't vote for vice president anwyay, but of course the media spends a lot of time covering the vice-presidential search and selection process. Remember how they nearly tossed Quayle off the 1988 ticket, and the Bushes never felt comfortable defending Quayle against false charges.