I would jump on a reissue or CHUG Battle Gaia in a heartbeat.
I love how Shuttle Gunner's alt mode is explicitly described as a "Combat Space Shuttle" (戦闘スペースシャトル)
Target Hawk's the best looking of the lot IMO and I love the silver elbow stickers on Great Cannon. Makes me wish that they'd done it for Onslaught.