Sorry it' been awhile!
Easiest Gym Leader you've beaten? How did you defeat him/her?
I always found Roxanne to be really easy because of the fact that i hardly ever pick torchic, but if I do I also pick up a shroomish or a lotad before the gym. She was really easy.
About Bianca and Cheren- I really hope that they scrap most of the old gym leaders becasue having new ones is always so cool! I hope Bianca isn't as down on herself as she was last game, cause that got annoying. and I won't say anything bad about Cheren because of how many people love him (Hikari 10, *cough* *cough*)