Considering Jimmy is American, not Canadian, I think Kodiak is pretty perfect. Has that exotic-sounding northern snowy forest vibe that the name Wolverine does.
(Unless we're talking about the Jimmy Hudson that was in Alpha Flight and I somehow misunderstood, hah.)
http://marvel.wikia.com/wiki/James_H...._(Earth-1610)
http://marvel.wikia.com/wiki/James_Hudson_(Earth-616)