Lots of people have played these games, and have loads of team members that they use or have used. There were those that really stood out for being pure powerhouses and others that would always be defeated when it wasn't meant to.
Who were your favourites? How did you use them, what moves do they know? Are they full out offensive with TM's or natural moves? Do you also max out their IQ or just no bother if they aren't the leader.