My take on a lot of classical music is that they seem to be trying to hard, doing too much with the instrument (been listening to some piano pieces by Liszt, Chopin, etc recently). That and I really don't appreciate a lot of high treble sounds (it depends, but genereally flutes and violins aren't my favourite instruments).

My recently instrumental fascination has been the work of Yann Tiersen (Amelie soundtrack), which has recently inspired me to try my hand at the piano again after 20 years. Not sure if that'd float your boat though. May give Brahms a go though.