Shinkenger, it was my first Sentai and one of my first Toku. It's a little more on the serious side but it holds a special place in my heart because of the cast & their bonds, the designs, the mechs, etc. Everything about it was just so perfect to me (I cried like 7 times during the final arc). One last thing.....Shinkenger has my favorite Sixth Ranger and I love him so dearly. I even have his changer that's fully working and in good condition that god bestowed to me.