The Grass-type starter of Sinnoh rocks the #7 spot on this list. I've never disliked the Grass starters (except Meganium), but it wasn't until Gen IV that I decided to make one the main focus of a team.
Due to my awesome experience with Torterra, he's found his way onto my main team, occasionally swapped with tomorrow's entry. He brings some heavy hits to the table with Earthquake and Wood Hammer, and can take a fair amount of damage due to his bulky defenses. Just for added measure he also knows Synthesis and holds Leftovers just to give him some extra health back. He is also my Stealth Rock setter, so that anybody who comes out against his gets automatic damage.
As a side note, turtles are one of my favorite animals so it was a given that I would like this guy.