Most impressive apparatus in 2007 is Vault for men. The difficulty and air time is astonishing.
The vault most likely to win right now is the dangerous Tsukahara Double Pike, I think. (Though Double Front 1/2-out may be easier to stick.)
Click PLAY or watch it on YouTube.
Two of the three vaults on this video are performed by Charlie Tamayo most recently training and coaching at Woodward West Gymnastics Camp.
Charlie, originally from Cuba, is trying to get US citizenship in time to try-out for the American Team for the 2008 Olympics. (I think the USA could use Charlie.)
Gymnastics Coaching.com 