Just logged to mobileadscout
What factors should be considered to determine a profitable banner / lander ?
on time dropdown menu , what should I choose ?
on Day seendropdown menu , what should I choose ?
is there any definite formula to determine who the winner ?
I appreciate all your help....
Sort by greatest days to least or something similar.
Basically look for the LP's that ran the longest.

For me, I sort by time: Past week, Past month,...and look for the most days seen to see the latest working LPs.
i just try them all.
essentially u will need to try them all if you are any serious about this trade.
but of course it helps to have a starting point. think about what kind of landers/banners would have the highest chance of succeeding? what characteristics would they have?
chances are that they are all over the place, running for a pretty long time. then u figure out how to use the statistics from mobileadscout to see this, running for the longest time? most landers? most traffic sources?
they wont be the best landers, because these guys are focused on scaling their stuff and less on the angle, but its a good starting point.
when I see similar LP for an offer, it's a "clue" for a good LP.
So, I scrap it and modify the color / button / picture, and then split test -> compare the CTR
I think a good LP is the tested one.