What pokemon have you seen that you absolutely hated but somehow you ended up using it and it became one of your favorites. Thought it would be interesting to see people's stories. For me it was hydreigon
2 pokemon I think of :
1) Pelipper : at first, I didn't really hate it but I thought it was some derpy weak useless pokemon but then I started using in both in game and competitive and I love it now. It has pretty good defense, it counters most oh-so-good fighting types and supports a rain team very well. If you have one in an NU team, Sawk and Gurrdurr are no longer problems :D.
2) Cincinno : at first I was like, yet another cute and weak normal type until I use a skill link one in B2W2 and this thing was so good ! It's fast, hits very hard and has very good coverage. Even if it's in a difficult situation, it can still U-turn out and demolish stuff later :p. It even killed the almighty Kyurem Black in the story mode, it was funny seeing this badass super strong dragon getting demolished by an adorable little furball :p.