So many i can think of:
-Energy/wins/exp/trains gained today
-Bot you have given most losses to
-Bot you have given most wins to
-Average wins/energy/exp gained per day since bot creation
-Total energy scored
-Longest session online
-Amount of online attacks/Amount of times attacked online
-Most energy/wins/exp/trains in a day
Also an End of month review with basically all the above but for the previous month so you can analyse how well you did, bet there are loads more i haven't thought of.... some are probably harder to implement than others but would be a nice addition i think.