I'm going to be supporting
#1 Ferrari.
Mostly hoping both their drivers do well, match eachother and race sportingly. I dont really mind if either win the championship in 2010 as long as they show their talent and good sportsmanship.
#2 Red Bull.
Vettel is already a super talent and Webber did very well in a season he started with the lower hand. Watching Vettel is great and fresh, unless he signs/flirts for Mercedes.
#3 Schumacher. Would hate to see him coming back only to disgrace his name. Doesnt matter if he wins the championship or not, but if he's able to get some good results, give some good matches to the newer guys and converts some of the hateful anti-fans (although i doubt he'll be converting any Mclaren fans) then all is good. BUT i will NOT be rooting for Mercedes (they'll probably be so damn good you'd have to hate 'em!)

i'd like them a bit more if they got rid of Nick Fry, which i doubt because the man probably masterminded their rise to glory

also if they dont come up with a cheating car this time around........
For the rest, i'm mainly excited about more than 2 teams and several great drivers driving eachother to the limit. Lots of new teams to watch and suprise? and that we didnt lose but the meaningless of teams....
Came out fighting indeed.