Least Favourite Gym Leader?

So who's your least favourite gym leader (from any Pokemon game)? There must be one who drove you completely insane in one of the games. You can state more than one if you wish.

My personal least favourite gym leaders? Whitney (from Pokemon Silver/Gold) and Leonara (Pokemon Black/White). Whitney was annoying with that Miltank of her's while Leonara had one powerful Watchog. Though Whitney still bothers me even more to this day (that Miltank is unstoppable).

UGH I would have to say Elesa from Black and White. Especially if your whole team is weak against electric. Her Emolgas are super annoying and so is her Zebstrika!

^Oh yeah, Elesa was a challenge as well. Those Emolgas and their volt switches were very annoying and once that Zebstrika comes out you know you're screwed. :0

Even Zebstrika's cry sounds intimidating. Also the amount of times I got paralyzed in that gym battle was also ridiculous as well.

Ugh I hate Whitney! Her miltank keeps using rool out and it just so insane! I hate that gym leader!!

I'm gonna post my top 3 with the reason why these Top 3 least favorite gym leader sucks.

1. Whitney (G/S/C and HG/SS) - Miltank is ******* moo ***. You see her spamming his fabulous ****** move Milk drink. You see why this gym sucks so bad. Even you get struggle against Whitney. It all about that damn Miltank.

2. Byron (D/P/Pt) - Byron is too easy that I can flame his pokes into the dust. Like seriously this gym is walk in the park. Fire types overkills this gym. Like one Fire Blast to a Bronzor. Done. Byron is disappointing gym Leader. Although I like the character variation to his grandson Roark. But still I don't like him because of his Pokes and no challenge factor.

3. Burgh (B/W and B2/W2) - YO BURGH you are a really weird gym leader like seriously. I never like you. xD. Although your art is cool and all but in B/W2 confirms your gym is freaking weird. As despite I don't like you. Your pokes aren't that challenging. It just all about you Burgh that makes you in #3 in my least favorite gym leader.

My least favourtie gym leader was... Cheren. That guy made me catch a Riolu, train to forever and teach it Force Palm.

Witney from HG/SS.I hate attract and her rollout.IT SWEPT MY TEAM!!!

Freaking Whitney! Eugh, that Miltank.

Probably Whitney, although I don't have a least favourite.

Whitney. I had a lot of trouble with her miltank.