For me the best part of GFW was the all to brief trouncing of GINO by Godzilla. It's too bad some of the other kaiju battles weren't longer,especially against some of Godzilla's tougher enemies like Hedorah.
Yeah I admit that was pretty cool. And it was a nice touch that he was kept as a CG effect as well (even though it meant his showdown with Godzilla ended up being very brief).
Here's a small bit of trivia about the cgi "zilla" from GFW. Toho used a Trendmaster Deluxe G98 toy for the macquette that they scanned for the cgi. I thought that was oddly appropriate.