For masturbation I'm enjoying Pink Frolic, which EF sadly does not carry. It's marketed as a specifically toy-friendly lube. It's not mind-blowingly great but it's decent lube and it comes in a pump bottle, which I love. It's also fairly thick when you initially pump it out so it doesn't run everywhere before you've applied it where you want it.
My staple right now is Hathor Aphrodisia. But Maximus sounds very similar and comes highly recommended. Pjur is really nice too if you aren't using it with silicone toys but I mainly just use that to polish my latex. I'm trying to finish off my Liquid Silk bottle and while it does a perfectly respectable job it has a bit of an odor and isn't my top choice.
Oh god. None. These all contain glycerin which many women react badly to and can cause yeast or bacterial vaginal infections. I believe the ID lubes also have parabens which are just scary. I will only use water based lubes that are glycerin & paraben free and I prefer organic. EF sells the Sliquid products which are excellent. I like my YES lube which is unfortunately only available at yesyesyes.org