I have a friend who likes to find out if a players 'significant other' is pregnant and knock him down in his rankings for paternity leave.
Some will put a certain stat above all other stats and work through that angle. Some make projections. Some feed their computer numbers. Some just study all the possibilities.
In short, we try to cover all bases.
I do a few quirky things. I don't want to mention some, because they're mine. I don't have them copyrighted, but at the same time, I don't want others using the same thing I'm doing to beat me.
But, there is one method that I'll share here, since you guys are savvy enough to check out this part of the Boards

I call it my 'How much do I really like that piece of crap' test.
First, I disregard the first 300 players on the adp list. We are left with round 21 to infinity.
I draft the best team I can with those remaining players. This is not the best adp team, this a team to my personal liking.
Closers are not considered here unless I am really hot on a closer in waiting. This is because every closer is drafted by the 20th round. So draft your favorite nine pitchers, be it starter or reliever.
After assembling this team, Do it again only this time allowing numbers 200-300 in adp to be involved. Pick the best team again.
Then allow 100-200. repeat. Then allow 0-100.
In the end, you will end up with an all star team.
We're not concerned with that. The finished product means nothing. What we are concerned with are the players that survived each cut. Those players that survived the cuts are players that we consciously or unconsciously want on our teams.
If a player goes from the 300 to 100 test, I'll move him up and make him a 'must draft' and draft him well before adp. For me, it has only happened twice since doing this test.
Then, I'll earmark others who have moved up from the 300 to 200 or the 200 to 100 tests too as 'very draftable'.
I call it the 'How much do I like this piece of crap' test because players in the 21st round and beyond are viewed as, well, not very good players. But, for some reason, we like these players more than some of the players on our very own lists above them. In effect, it's a great way to 'check my homework'.
Maybe this'll help you. Its opened my eyes to players that I've liked, but wasn't even true to myself in the level that I liked that particular player.
Think of this as a new Doritos flavor. If you don't like it, don't buy it again.
If you do like it, use it again next year and you have a new flavor to go with your 'go to' Doritos.
If you win with it, you owe me a bag of Doritos.