1 mm on the high E, 1.75 mm on the low E on my Les Pauls.
I play very differently on the high strings compared to the low strings, so I like medium action on the low strings and low action on the high strings. I used to have 1.5 on the low E, but I've been playing harder lately, so I felt like raising it up a bit. Still not sure if I like it though. I wish I could get it all-around lower, but then again, these are Les Pauls, not Ibanez RG's.
I do dislike the feel of high action. But moreso, I hate the notion of it, especially on nicer guitars. I mean, if the guitar has to have mile-high action to sound its best, I might as well be playing a Glarry. JMO.