I love Oasis. A lot of people stopped caring when "Be Here Now" bombed, but they got better eventually, to the point where "Don't Believe The Truth" is actually a great album. Hell, even now, when listening again, Be Here Now has some great catchy tunes, it's just that some of them sound really loud because they overproduced it.
If you just want single songs, "Acquiesce", "The Importance of Being Idle" and "Underneath the Sky" are some of my favourites.