I have my subject .net acedemically. I also learned core-java and did a project as well. I took training from a java firm.

Now, as a skill I do have knowledge as both language.

But, it is creating a large problem to me that, which field I should chhose?

Even if having better OOP funda, will it be easier for me to transfer from one-another in future ?

Please suggest me a way.

Also, we do have may technologies available at both side, like JSP, JSF, J2ME, Share Point, SilverLight etc. Which is better as per their reliabity point of view? Which are fast growing and useful technologies used mostly in current IT corporate world ? Are they easier to learn at fresher's point of view? Please answer. Perhaps, this answer may help me mostly to create my way to learn them and go further.