Sceptile:
Type-wise, it has 5 weaknesses when attacked and 4 strengths. It has a high speed, but a low defense and HP. Its’ special defense is decent. Its’ special attack is a good bit higher than its’ attack, but it can learn a good selection in both move fields.
Attack: Night Slash, Leaf blade, Dragon Claw, Iron Tail, Earthquake, Brick Break, Aerial Ace, Drain Punch, Giga Impact, Rock Slide, and X-Scissor
Special Attack: Leaf Storm, Hyper Beam, Giga Drain, Solar Beam, Focus Blast, Energy Ball, and Dragon Pulse
Torterra:
Type-wise, it’s not the best. It has 4 weaknesses including a x4 weakness to ice and only 3 strengths when attacked. It Ties with Meganium for the lowest base stat. It is astonishingly slow, but has high HP, Defense, and attack stats. It’s Special Attack is low. It has some good move options and variety, including enough diversity in move types to have four solid attack moves to gloss over the low special attack stat.
Attack: Crunch, Earthquake, Wood Hammer, Iron Tail, Stone Edge, and Rock Slide
Special Attack: Leaf Storm, Giga Drain, and Energy Ball
I'd go with Sceptile because of the moves and lack of a x4 weakness