Scyther is the best Pokemon Ever. No Question Whatsoever. I first discovered its awsomeness when I bought one in my Red it has since been on every team I have ever had.
Red: Scyther Lv 100 (I still have this bad boy)
Blue: Scyther Lv 100 (I gave Blue to my cousin and as far as I know he still has my good old Scyther)
Yellow: Scyther Lv 100 (this game broke on me last year

)
Gold: Scyther Lv 100 (still have)
Silver: Scyther Lv 100 (My cousin still has this Scyther, I made sure he never deleted it as it has the second highest stats of all my Scythers)
Crystal: Scyther Lv 100 (still have)
Ruby: Scyther (Shiny!!!!!!) Lv 100 (still have)
Sapphire: Scyther Lv 100 (still have + this one has the highest stats of all my Scythers)
Emerald: Scyther Lv 100 (still have)
Fire Red: Scyther Lv 100 (still have)
Leaf Green: A whole team of Scyther on this version!:
Scyther Lv 100 (Shiny, my team leader)
Scyther Lv 100
Scyther Lv 100
Scyther Lv 100
Scyther Lv 72 (Currently training)
Scyther Lv 52 (Currently training)
Scyther>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>ALL
Scyther>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>Scizor