Actually rather surprised not to see Kevin Stevens on your USA team. Not that he'd be a top liner or anything, but he'd definitely be a good 3rd line option to be sure.
Personally I would keep that top 6 intact, move Stevens into the #3 LW spot and bump either Housley or Amonte with Drury in that spot due to his ability on the PK.
I will say good pick on Dillon though, I had forgotten that he even was an American.
You're right about Stevens. I just forgot about him. I'll put him on the 2nd line for chemistry reasons - Lafontaine is kind of like Lemieux-lite and Tkachuk and Roenick actually played together.
I'll move Dillon down with Drury and Broten to form a sort of shut-down line that can take faceoffs in its own zone.
Doc Romnes can be a spare; I really don't see him being that different from Gomez.
New new Team USA:
John Leclair - Mike Modano - Brett Hull
Kevin Stevens - Pat Lafontaine - Joe Mullen
Keith Tkachuk - Jeremy Roenick - Phil Housley
Chris Drury - Neil Broten - Cecil Dillon
Chris Chelios - Mark Howe
Brian Leetch - Rod Langway
Derian Hatcher - Gary Suter
Frank Brimsek
John Vanbiesbrouck (or Tom Barrasso or Mike Richter)
PP1: Leclair - Modano - Hull - Leetch - Housley
PP2: Tkachuk - Lafontaine - Mullen/Roenick - Chelios - Howe
PK1: Broten - Drury - Hatcher - Langway
PK2: Modano - Dillon - Chelios - Howe
Extras = Some combo of Scott Gomez, Doc Romnes, Bobby Carpenter, Tony Amonte, Brian Rolston, Hobey Baker, Kevin Hatcher, Taffy Abel, Dave Langevin, Brian Rafalski