Ou just means it's good. One of the worst excuses to not use something when It's great for the role is "It's too OU". Dugtrio is also standard last time I checked...I used to like weavile but now its wayy too over used.
Lmao, that was against me =DIf you have enough speed on your team (ie a fast pokemon made faster with scarf, priority move) then I would run Adamant over Jolly... in a battle on Shoddy just now, I lost because Duggy couldnt' take out that pink blob that is Blissey. CB EQ with 252 atk and Jolly nature did about 50%; softboiled + lefties negates your efforts... dunno what adamant would do, but I wish I had adamant instead lol