I am new to the code generation tools and I would like to know how does a tool like LLBGen Pro compares with the Entity Framework? 
On top of that my boos is really looking into a tool called CodeOnTime <http://codeontime.com/default.aspx> because he likes their good UI support.

I am asking here because I really want an unbiased opinion.

I am not sure if LLBGen can also generate the UI. So far all the development in the house we do it the classic way coding each layer manually. However we are in need of a fast prototyping tool.

Any advice to help me choose wisely will be much appreciated 

thanks in advance.