I've gone with moderate rest periods like about 1.5 mins. Used to do circuits for time efficiency but decided maybe extra time to allow recovery would get better results.

I still do mostly just bodyweight stuff and light dumbell exercises to target smaller weaker muscles which need building the most. Even as a chick it's too easy for me to get muscle imbalances working the larger muscles groups without the smaller ones!

I mostly work my back since that's my weak point, get enough leg work in plyometrics and squats and lunges and hill running I think. At least my legs aren't small compared to the rest of me anyway! I do a separate routine just with bodyweight exercises for my core aswell but not sure I've found the best routine for that yet.