Yeah, I've voted for G2 clients.
There are many reasons, like extendability, broadcast searching, and many others!
But Shareaza is still my favorite
It has the nicest GUI if ever known, and the skinning engine is awesome!
And the comments from LW fans that say that if you use Shareaza, you sacrifice upload bandwidth, are not right anymore!
At this time, LW implemented a DHT (Prove me if I'm wrong, but a DHT is a seperate network) and BitTorrent. So, LW's will automatically spread his bandwidth.
And when they're downloading a torrent, it's exactly the same.
(Does LW recognize SHA1 hashes inside a torrent? Like those made by torrentcreators like TorrentAid? So not the BTIH, but the SHA1 of a single file torrent)