When I was going through expert I had the most trouble with the start of Foreplay/LT and then mid of DFtR too. Eventually DFtR gets a lot easier, the pattern at the end is actually not as hard as it looks, but the middle roll part is still a bit tricky. Of course, it took me a while to get good enough to beat Run to the Hills, but if you have a decent drumset that can pick up the notes it can be done. jdport CK, we should start a band up one day and play through some songs. The hardest songs in the game for me are Run the the hills, next to you, I get by beginning part, outside, and DoA. I just finally 5 starred DoA a couple days ago. I will never be able to 5 star Run to the Hills, even 4 stars seems hard.
oh and jdport if you are looking for fun songs on drums particularly, I recommend, Working Man, Limelight, all boston songs, joker and the thief, message in a bottle, move along, ten speed, and and justice for all.
edit: oh... from that list.. my bad. I'd say crushcrushcrush is really fun but pretty simple on drums. edit... sweet i finally got 4 stars on run to the hills on the big rock ending