If you've got a new team, then start with Simmy's recs for a line-up and then adjust based on performance around 40-50 games in.
If you have an established team (one that you've had for a couple of seasons), then you can look at Simmy's recs for any new players to your lineup, and go from there.
In general, I will have my best OBP guys 1-2-3 (with the speediest guy as leadoff), and go descending by slugging the rest of the way, If I have a couple of guys who are pretty close in slugging, then I'll stack them by OBP within that grouping.