
Aficionado
Passion Intensity
Use 'aficionado' for someone who doesn't just enjoy something, but loves it deeply and knows a lot about it. 
Positive Connotation
'Aficionado' carries a positive vibe, suggesting respect for the person's dedication and knowledge. 
Specific Interests
Often used for hobbies or cultural topics, 'aficionado' is less common for general topics like science or history. 