I never actually understood the medium.
My experience with the occultist was rough, a very strange and poorly built class, IMO. The spellcasting ability is ridiculously limited.
Yeah, the psychic's spell list is a huge disappointment.
Played a mesmerist and loved it, felt very versatile with casting, rebuffs, and being a face.
Id Rager Bloodrager should be high 3 or low 4, at least. Swaps bloodline for all the abilities of a phantom when bloodraging, except incorp. This includes running through walls, all the emotion abilities, DR, even bonuses from the table (ability increases, etc.) Oh, and rageable psychic spellcasting.