I agree. Sceptile is definitely the second best one there. This is due to it's high speed, great Sp. Atk, Swords Dance to boost it's good Atk and a wide movepool (widest of all the Grass Starters, I think)
Third would be Torterra. STAB Earthquake is very nice. As is the ability to play both in the sun and in the sand. Access to Stone Edge and Stealth Rock are also selling points.
Meganium is fourth. By far the bulkiest Starter here. She's great for team support and can play a number of support options. SubSeeding, Screen Support, Dual Screen Support, Cleric (Aromatherapy) and just all around wall. She enjoys the sun even more now that she has Leaf Guard and Synthesis.
Jaroda is, sadly last. He's a very good SubSeeder and Perversity is a Godsend, but everything else is either subpar (his offensive stats) or outclassed by something better (defensive stats: Meganium, Speed: Sceptile). It's horrid movepool doesn't help either. The only noteworthy moves it has are Coil and Calm Mind (every other Grass Starter gets Leech Seed and Leaf Storm, so those don't count). It makes Meganium's movepool look like Mew's for God's sake. Too bad too, because he is definitely one fly looking dude.