Re:
I suppose it would be my Norco Torrent, a steel hardtail with a suspension fork. My Mountain Goat feels fast but as a single speed it would be course dependent. My Catamount is a nice bike but as a full suspension bike it feels a little less responsive and it is heavier than the other two.
The WD40 bike specific products are actually quite good.
I use WD40 dry lube and the WD40 bike wash. I use Simple Green degreaser for cleaning drivetrain parts. I like Muc-off dry lube as well but it is getting hard to find so I only use it for dusty conditions.