02 Dissociative - STAB Earthquake, plus his dual typing is excellent. He has a wide movepool, and decent (not brilliant or anything, but decent) stats. He is also the only good Water-type you can get for quite some time, with the exception of Tentacruel, who I also love but find he grows too slowly, whilst Quagsire grows at an average pace. He is also very effective against the majority of the gym leaders, you can easily get a good moveset on him and he works wonders against the Elite Four (I entered the Elite Four with all pokemon at the same level, and when I became Champion Quagsire had grown by the most levels). I could go on, but I've given enough reasons. Sure, Swampert is even better (because he evolves more than once), but Quagsire is the
original Water/Ground type. I really like Swampert too, though.
Traffic Monger - Yes, Tyrogue is given to you in Mt. Mortar. I always thought Hitmonlee was the most prominent of the Hitmon family, though.
Ryuujin - Thanks.
gangstagirl - If you don't mind me asking, why Bellossom? I know you can't get a Vileplume until ridiculously late in the game (which is when the Leaf Stone is finally available, although hopefully the remake will change that), but I'm curious. I never found Bellossom to be any good, myself.
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