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52: Cilan, Chili, Cress
51: Bugsy
50: Falkner
49: Ramos
48: Koga/Janine
47: Roxanne
46: Morty
45: Giovanni
44: Clair
43: Norman
42: Chuck
41: Cheren
40: Grant
39: Wattson
38: Brock
37: Clemont
36: Pryce
35: Erika
34: Fantina
33: Skyla
32: Wulfric
31: Wallace and Juan
30: Lt. Surge
29: Olympia
28th: Maylene: Veilstone City
Featured in: Diamond, Platinum, and Pearl
Maylene lands in the middle of the pack simply because she is incredibly similar to most fighting gym leaders. The developers have really never gotten all that creative when they drop one of these trainers in, but having her lead as Lucario puts her this high. I mean they finally decided to utilize new pokemon and it actually gave an interesting spin on the strategy you would use to beat her (and by strategy I mean you can’t just kill it w/ wing attack).
i think its kinda cool shes just a kid and her lucario threw me off guard a bit
she is to this day the only gym leader ive lost to(and i give myself weird ass teams sometimes)