Of your 4 choices Paul, in a equal size, yes the weld's would be the lightest. If I have time, i'll do a little nosing around for you and post what I find.
But I'm curious, are you looking to "upgrade" to a lighter wheel, or is this just for reference? There are streetable wheels out there would be lighter then the weld's. It just comes down to the design you're comfortable with, and you're pocketbook :D. Also the need for a 4" or 4 1/2" bolt pattern?
