What's better for glass: Klasse AIO or HGSG?

[DavidAl]

I know there are more dedicated products out there for glass, but these are the two I have on-hand. Which one would you use on glass?

Thanks.

[Don M]

I've used the HGSG on glass without many ill effects. It works kind of like Rain-X and bugs come off easier. It IS easier to use on glass than it is on paint though.