How to raise Pokemon you want to raise FASTER?
If you have a Pokemon that you want to raise faster, add it to you're party (if it is in the PC Box) and give it the Lucky Egg. Then go to Route 1. The best idea is to send that weak one that is holding the Lucky Egg out first, then switch it to a stronger one and defeat the Wild Pokemon you are battling. Until it reaches in between Lv.55 and Lv.60. Then it should be easier. If you battled Audino and deafeated while holding the Lucky Egg, the Pokemon you are raising is guaranteed to go the Level you want it to be FASTER.
Added by: Conway Nov 20th 2012, ID#17703