Hakkinen: shy, friendly, good husband, good father, spends his weekends playing with his son or taking care of his gardens, enjoys old comedies, cries when watching Marley and Me, all neighbors love him, his wife's family loves him, reliable employee, great driver.
Salo: bluffer, arrogant, funny, a good guy to hang out, drink a lot and cast some stones on windows, likes rock out loud, thinks he's a mixture of James Hunt and Kurt Cobain, marry to whores, will die of overdose even though 27 benchmark is gone long time ago, great driver without a real good chance.
I used to support Salo on his last F1 years, but of course Häkkinen is one of the most interesting champions that ever existed. I started to appreciate more his character after I saw its video:
http://www.youtube.com/watch?v=rRIq3UhoB-M