People ***** to no end over Yorick bot lane, and he's strong right from the start and farms minion waves like CRAZY, with incredible sustain.
Jax is an incredible duelist mid to late game, and a lot of fun. He starts out mediocre, perhaps even weak but if you make it to mid/late game, you can make people fear you.
Morg makes life hell for melees with her kiting ability, and farms minions like mad. I really feel she's a STRONG bot pick, although she's not mentioned much, and a good counter to melee picks.
Urgot and Kassidin as mentioned.