Generally, I think the best pit scouting strategy (that is, something that should be done every year regardless of the game) is all the drivetrain details and a picture, as well as overall ratings (assuming your pit scout is a knowledgeable person about your team's robot and strategy/robots in general). We also generally note what type of shooter/intake a team has.
This year on 125, we used the notetaking app Springpad* in order to supplement our scouting. I can't imagine how our scouting would have gone without it. We have a 'note' for each team we see throughout our district events, each tagged with the events they are attending (not just the ones we see them at-we got a bunch of pictures from Granite State last weekend).
Did it help? Boy, it did. During our Saturday night scouting meeting, it was great to just quickly pull up a picture/info on everyone's computers/phone. Even better was when discussing our second pick with our alliance partner, we were able to quickly pull up a picture of a robot when they asked, 'which one is that again?'.
I hate relying on anything more than pen, paper, and an excel spreadsheet for scouting, but this really has me considering changing my mind. **
*We used Springpad over the much more popular Evernote due to the fact that it has an unlimited upload rate. We very quickly ran into Evernote's 60 mb upload limit after <20 pictures at Granite State
**Of course, for Pine Tree/NE Champs, I very likely will probably end up printing a 'journal'/book of all the pictures we have; I'm an FRC Scouting luddite
