Tank heroes:
+1 for Lafayette G. Pool
From here, three more names
http://www.3ad.com/history/wwll/pool.pa ... rticle.htm:
Henry J. Earl
Shelton C. Picard (was assigned a Pershing tank later on, might be interesting)
Cliff L. Elliott
Albin Irzyk
Quite famous is
Creighton Abrams:
http://en.wikipedia.org/wiki/Creighton_ ... rld_War_II
His troops were in a famous action where outnumbered US tankers stopped the German advance in de Ardennes: the Battle of Singling.
http://www.history.army.mil/books/wwii/ ... ngling.htm
From this link, it seems sergeant
Robert Fitzgerald's tank destroyed several Panthers (his account starts at chapter 202 of the link above)
Fighter aces: (I assume Europe only, so no Bong or McGuire, who only fought in the Pacific)
Here is a comprehensive list for all US fighter aces in the European theatre:
http://acepilots.com/usaaf_eto_aces.html
Gabby Gabreski
Robert Johnson
George Preddy
John Meyer
Raymond Littge
David Schilling
Bomber aces:
Difficult, but I've found a list of bomber gunner aces (all theatres):
http://jpgleize.perso.neuf.fr/aces/ww2usgun.htm
Bomber pilots:
Paul Tibbets (also flew the Enola Gay but was very active in Europe)
B-17 pilots who were awarded the Medal of Honor (mostly posthumously...

)
http://en.wikipedia.org/wiki/Boeing_B17 ... nor_awards
B-24: Lt. Col
Leon Vance
B-26: Capt.
Darrell Lindsey
And lastly, he is not a tanker or aero ace, but infantryman
Audie Murphy deserves a mention.