Final Fantasy I: Overrated
Final Fantasy II: Neither overrated nor underrated
Final Fantasy III: Rather underrated
Final Fantasy IV: Neither overrated nor underrated
Final Fantasy V: Rather underrated
Final Fantasy VI: Overrated
Final Fantasy VII: Most overrated
Final Fantasy VIII: Underrated
Final Fantasy IX: Rather underrated
Final Fantasy X: Underrated
Final Fantasy X-2: Most underrated

I am neither old school nor new school purist.