The really awesome Jason vs Tommy where Tommy nearly kills jason was cool.
And the one where Tommy nearly gets killed by Goldar. Dammit, Goldar had too few moments where he was truly badass. When he nearly killed Jason was awesome. If I could re-write the power rangers timeline, I'd take out all the silly voices and mindless optimism, remove the nice lessons on morality and keep the humour repressed and non-stupid, and make the bad guys genuinely scary. For kids at least...
Eh, that was always the option faced by Power Rangers. They could've gone the more serious road and made the baddies and goodies more badass, or they could've made it more slapstick and optimistic. They took the latter route, is all.
What confused me was that the baddies always knew who the Rangers were. So why didn't they just assassinate 'em? Send in Goldar, after making him grow, and have him step on 'em. Or maybe send more than one monster at once, which would have completely screwed the rangers. Likewise, if the Rangers had just used the big robot from the first encounter with whatever monster they had to face - PROBLEM SOLVED!