I think I last watched G4 at the end of Season 3, then I just dipped out because I wasn't vibing with it that much anymore. I'm cautiously optimistic about that G5 movie though.
Titans Return had a lot of fun molds.
Battletrap was the best combiner from all of PWT.
CW Menasor hurts to look at, but at least he isn't PCC Double Clutch with Rallybots.