Dr Who (David Tennant)

[DanaC]

In terms of years lived, Jack's actually older than the Doctor, and has now had some really sobering experiences. I'd like to see him take the younger Doctor in hand. Pun intended.

No he isn't. Not unless you count the Face of Bo, and that's way into the future :P Capn Jack lived through about 250 years. The Doctor claimed to be 906 (which, just to be really pedantic, suggests he's taken to lying about his age, because he was older than that in the days of Sylvestor McCoy :P)