As stated, Alakazam is THE psychic type. It has a diverse movepool, good stats, and is cool, plain and simple. I'd also recomend Sigilyph for some diversity, Reuniclus for walling potential, and Jynx for trick rooming, skill swaping and ice punching insanity.
TBH, I'm not sure on wobuffet. There's a reason he's banned from most comp play. I... I may need to make a ruling on this one...
Actually, I keep up with competitive battling, despite not doing it, and Wobbuffet is no longer banned.