web framework deathmatch: Rails vs Seaside
Glenn wrote recently about how to decide between Rails or Seaside.
[...Rails] is better in some ways, but Seaside is better in other ways. I think it's just that Rails' strengths address problems that are particularly frustrating to developers right now.
Rails addressing the problem of updating a relational database from the web, while Seaside focuses on the problem of state management in the stateless world of http.
Also of interest would be the latest Ruby on Rails podcast with an interview with Avi, the creator of Seaside. Also see this, or go read one guys experience learning seaside.