Sonic hero is probably one of the many spin off titles Sonic Team talked about a while ago to get Sonic as popular as Pokemon use to be here(which is still super popular in Japan(which will never ever happen for Sonic)) I'm sure we will see something on it at E3. The NEW Sonic title is supposed to be shown at E3 and im sure Sonic Hero isn't it.
The Sonic Team game for PS2 isn't Sonic at all.
As for SA
X im gonna buy it only becuase I never completed it for DC and pluss all the GG games are in it. But its only about 2 months from US release and it looks craptacular. Maybe they are just real early screens. The new models dont mix well with the old non-standard graphics.