Re: Could Japan have won in the Pacific . . .
To some extent that is true, Rom. The Alaska campaign, though, was very undermanned and for a long while, there was little that could be done against the Japanese on Attu and Kiska except harrass them with occasional bombing raids. It wasn't until 1943 that the U.S. began to recapture the islands in the Aleutians held by the Japanese. As for reinforcing the Pacific from the Atlantic fleet, there wasn't really very much to reinforce them with in the first year or so of the war. What little we did have was occupied escorting convoys across the Atlantic, or involved in the North African campaign.
--Pistolenschutze (Pistol Shooter)