Is there any info for profitability between scrypt, scrypt-n and x11?
You mean like this on the front page?

and this means what? can't figure this chart.
Take the rates displayed in the "Currently Paying" column and do this:
For a quick comparison I found this to work reasonably well with AMD GPUs:
Multiply Scrypt rate by 2
Multiply X11 rate by 6
Now compare both with Scrypt-N
Whichever is highest mine that
Can be done at a glance without a calculator, doesn't have to be accurate - you can see right away that now for example scrypt times two is ~6, X11 times six is ~13, and Scrypt-N is ~9