Java SE 6 or 7?

Well, I recently installed Arch Linux, and am now ready to continue development (starting with a pixel/programmer-art application 8)).
The only Java available from the Arch official repositories is SE7.

While I can install Java 6 with a little more work, I’m wondering if I should.

Since Mac+LWJGL+Java 7 is working, is it safe a good idea to switch (back) to Java 7? or is it not widely used enough yet?