Lucario, Hitmonlee, Gallade, Heracross, and Mienshao are the top 5. I can't decide on a concrete bottom 5, but I know Makuhita/Hariyama would be number 1.
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~Halo There is no Crane, only Scarecrow!
http://img195.imageshack.us/img195/3739/scarecrowq.jpg