Advantages & Limitations of Seam, Grails & Rails

Seam is based on JEE and supports all those high productivity features required for a full stack framework its future is bright for enterprise grade applications. Grails is good for small to medium applications where high productivity and time to market is very important. Rails was already enjoying the place where Grails was trying to place itself and in fact Grails was able to prove itself as an alternative to Rails. If community of Grails as well as Seam will grow in near future an people behind them will try to fix issues in these frameworks (at the same time if they will not try to make them complex and heavy weight) then you will see only two names in the Java/JVM related full stack framework market and they may be Grails and Seam. It is more important for Seam how they make it more perfect and working, simple to use, developer friendly. Seam has potential to beat Grails, Rails and any other full stack framework.
(Link: Advantages & Limitations of Seam, Grails & Rails)