I've (
finally) started watching from beginning to end recently. I currently just finished the Makai Tree Arc with Ail and An, and just about to be introduced to Chibiusa. I have no idea how many times I'll be saying
'Oh my stars, what an awful little brat!' 
, but I'm still enjoying it regardless.
So far, my favourite moments are the Cherry Blossom picnic from episode 51 (
FIRE!!! ...soul ), Makoto's introduction from episode 25 (Damn girl! She should replace Gordon Ramsay in Hell's Kitchen!
), and Rei's epic sacrifice from episode 45 (
I'm not done with you yet!)