Another conductor worthy of mention for his passionate dynamics, tender adagios, and understanding of soloists, is Sir John (born Giovani Battista) Barbirolli. When I first listened to Barbirolli's Mahler 2 & 4 I was transported.
A contemporary who seems to be on a (relentless) path of discovery is Theodore Currentzis. While many are suspicious of his approaches and his affectations (spending the night at the music hall with the orchestra, rehearsing in the middle of the night, analysing together the score with the composer's personality, the moment in time of the composition, and the emotional content he wishes to inspire...) -- I don't care. I the listener, am only subjected to the result, and the result can be magical at times (take the Mozart Requiem Lacrymosa, for example).
At the end of the day, I believe that what attracts me the most is the conductor\s personality and their psyche which emerges through the music; T was a powerhouse and, although he was a master of timing and score, what I get from his music is ultimately the power, the strength, and a sense of huge confidence. Furt OTOH was an amateur philosopher, very knowledgeable in ancient Greek philosophy (which he apparently read in the original text...) and his sense of humanity is evident in the music - i think.
A note re, Pollini - his technical prowess is beguiling. The only thing for me is that he seems to attack pieces of music as if he is solving a mathematical equation...