Question

I want an alakazam for my team, I just want to know if he will be stronger if I evolve my kadabra as soon as possible or if it even matters at all.

Answer 1

I don't think stats matter, its only a matter of moves, really, in general, unevolved Pokemon learn moves faster ( like if the evolved Pokemon learns the move X at level 50 then the unevolved learns it >50, like 40 or something ) However some Pokemon learn moves that the evolved form don't normally learn and vise versa, I don't know about Kadabra exactly, you need to check the moveset and then decide for youself.

Answer 2

It doesn't matter stat wise, but if you want him to know Role Play, you have to wait for Kadabra to learn it as Alakazam won't.