I just got a Kadabra in Pokemon Y version and I could never decide if I should level it up first or evolve it as quick as possible. Any suggestions?
in X and Y
At level 42 Kadabra gets Role Play.
At level 42 Alakazam gets Calm Mind.
Role play might be useful against Ghost or Dragon opponent but I went for Calm Mind so I evolved mine before level 42.
Evolve right away. There is no difference between Kadabra and Alakazam's movesets, so evolve right away to let your Kadabra get better stats.