Well I decided to give it another go, I got a file off ShareReactor and opened it in both Shareaza and EMule, keep in mind I just formatted like a week ago, Shareaza seemed to start downloading the file right away and it seemed to have more sources while EMule just sat there like a mule. I thought Shareaza would have this one considering the start. So I went to sleep and when I woke up Shareaza had a whopping 20mb while EMule had 200mb just sitting there at some shit slow but steady speed, at the same time Shareaza has better speeds but would peek and the pause. Kinda remends me of the Rabbit and the Turttle. Not sure if the rewards system works better on EMule or if Shareaza only allows so much usage for the EDK2 network but it Sux for EDK2 files.
My older example was opening a torrent in both Shareaza and Shadow at the same time, Shareaza never got past 40KB/s while the same torrent in Shadow was going at 150KB/s at the same time. I am not sure if Shareaza can only handle a certain amount of connections or has other issues but it Sux for torrent files.
As for G2 it may be growing as I have heard it is creeping up on 100,000 users but what can be found there can probably be found quicker and easier elsewhere, it still does not have the rare files that EMule has or the speeds that others have thus it Sux.
Shareaza is nothing more than a pretty GUI with a hack on other networks that it seems to have less access to than that which it has hacked, it is great and simple perhaps for those that want one simple GUI or happen to be on dial up, but in general it Sux Balls.