[Red5]

Shinkenger. The fight scenes were great, there was enough comedy to accompany it's semi-serious tone, Takeru was a great red ranger that showed character development throughout the the season and even in the movies, and the villains were pretty cool.
It featured the first ever female sentai leader that was a red ranger.
The rivalry with Juuzo was a great story line that complimented the story line of defeating the main bad guy.
The suits and helmets were different and cool.
My biggest gripe about the show were the mechs; they looked crazy and when they all combined, it was the biggest cluster cuss I have ever seen.

What the heck...but still my favorite series