Why does it HAVE to run Choice Scarf ?
Ive run a Choice Band Medicham and it rapes stuff.
Why does Gallade run Choice Band better?
Medicham gets Pure power, and they both have identical speed so thats cant be argued.
For one, even though Medicham has 480 base attack compared to Gallade's 383 base attack stat, Gallade Close Combat actually outdamages a Medicham's Brick Break, thus meaning that Medicham has to run Hi Jump Kick unless he wants to lose in the power department. Hi Jump kick has 100 base power and 90 base accuracy. Do you know how reliable that is? If you miss Hi Jump Kick, hit something resistant to fighting, or go against a ghost, Medicham will downright slaughter itself with the recoil damage, coming off 720 attack (including CB). The other moves commonly seen on the generic Choice Bander are as follows: the Elemental Punches and Psycho Cut/Double-Edge. The Elemental Punches are staples, since it's the only thing thing Medicham really gained that was notworthy besides Psycho Cut, but Gallade can also access the Elemental Punches by Emerald move tutor and also get Psycho Cut. Double-Edge is the only notable option to beat Cresselia, but Medicham must have Choice Band Adamant and max attack to actually put a dent to Cresselia, but the thing that put's it off is that it's illegal with Psycho Cut, which is a D/P breeding move, now you've just lost your most valuable weapon against Dusknoir. Another point is that Medicham is really only good as a Choice user, meaning that it's very predictable, and the shear suprise factor as Gallade as a sweeper seems to pressure and catch many people off guard. Gallade, not only can function as a generic CBer, it can fill niches in your team with status, Swords Dance sweeper, Bulk Up, Wish, etc, thus adding to it's unpredictability.
Now let's look at base stats: Medicham has 60 base HP, 60 base attack (with Pure Power), 75 base defense, 80 base speed, 60 special attack, and base 75 base special defense. And then Gallade's: 68 base HP, 125 base attack, 65 base defense, 80 base speed, 115 base special defense. Medicham is far more fragile than Gallade; a true glass cannon, and because of Gallade's useable HP and high SpDef, it can actually switch into stuff like Modest SpecsLuke Aura Sphere or something near those lines and threaten to counter them. Close Combat off Gallade is of par with that of Heracross's, meaning CC 2HKOs both Forretress and Skarmory. Not only does it get a nice weapon named Night Slash to effectively deal with both Dusknoir and Cress, but it also gets the same things Medicham gets. And unlike Heracross, it gets Ice Punch to kill Gliscor.