Band-Aid (Johnson and Johnson) makes / distributes a pretty good product that I have used before.
http://www.bandaid.com/advanced_healing_prod.shtml
I originally found it as
Compeed and have sworn by it since.
Couple of downsides: 1) It does not come in cut to shape like moleskin, but if you catch it early, the patches are generally large enough to fit. 2) It is waterproof, but will absorb water when crossing a stream or in a shower (FYI) 3) Because it is waterproof, you have to be careful when pulling it off, it will pull skin with it - I have found it better to let it almost slough off on it's own.
Positives: 1) It is waterproof 2) The edges are tapered 3) Slick surface, so it helps to reduce the friction.
Hope this was of some value to someone.
V/R,