While taffiti has a great look and feel, i am following the TG since my college days. TG is surely, close to my heart as i did some of my project work in it. That was my first interaction with java 2D API and java- XML.
Now that i am also doing silverlight and WPF stuff, Taffiti surely does provide an excellent change of taste and also what can be achieved using silverlight.
RIA have finally arrived and it would be interesting to see Applet based TG poised against RIA based Taffiti.
For me, both are inspiring. My vote though, goes for taffiti.
Do let me know your thoughts.