Big fan of the G3. Had one for a few years now and no real complaints. The hood is just a tad small, but they may have fixed that based on feedback by now. Never had a problem with wet pockets and I have put it through some pretty wet conditions for many days in a row.

The G4 is just a little too blingy for my taste, and functionally it is not really that much different than the G3. The G3 is cut a little tighter than the 4, which I like for walking, wading, casting, etc. I don't like much in the way of extra material getting in the way.

If you are going to primarily be using your new jacket on the salt and/or on boats, you might be more stoked on the Pro Dry shell as it is intended more for these types of applications. Heavier, roomier cut, etc.

Good luck!