Andy, I love your photography and I think you can get fine photographs out of any of these cameras because you have a fine eye and good technical skills.
But I have to confess I have ZERO idea what you want in a camera. You've stated so many contradictory things in this post alone that its just hard to tell what would suit you - and you've bought and sold so many different cameras in the past several months a person could get whiplash trying to follow the action. I'm sorry you had these problems with the EPL2 - they'd frustrate me to no end also. It sounds like you really want a G3 but don't want to wait the few weeks until its available? So you'll take the GF1? You've had GF1s, you know what they can do and what they can't quite do. The G3 sounds like it will be better in most respects (low light, faster AF, better video, built in evf if that matters to you). I have a GH2 and a GF1 and I'm not going to sell them to get a G3, but I'd probably be just about as happy with one G3 instead of both of these, except for the lack of some of the GH2 controls which I like a lot but could live without. If the G3 had been available, I wouldn't have gotten the GH2 I'm pretty sure.
If you really want an interchangeable lens m43, I'd wait a few weeks and hold out for the G3. If you really want a fixed lens, I'd either get a GRD 3 or I'd wait and save up for an X100. But I don't know what you want. But the main question is - do you? Can you use some loaners or used gear from your shop until you make up your mind and/or save up for what you really want? That might be the way to go if the option is available.
Good luck,
-Ray