I'm sure the majority of Jimmy Buffett fans are playing "Margaritaville" today in his memory. That makes sense, as it was Buffett's biggest hit, and its sing-along quality has held up for 46 years. I could also understand some listeners wanting to lighten the mood with Buffett's novelty hit, "Cheeseburger In Paradise." Among Buffett's non-hits, "Son Of A Son Of A Sailor" is a strong choice, lyrically and vocally.
Among his hits, however, I contend that "Come Monday" is Buffett's best single. Lyrically, it's a sincere, heartfelt way to convey how much you miss someone. I also enjoy it for the same reason I like the Hall & Oates album track, "When The Morning Comes." While the relationship in "...Morning..." sounds much more tenuous than the one in "...Monday...," it's comforting that the protagonists in both songs are poised to see their relationships through, regardless of how they turn out.
"Come Monday" wasn't as big of a hit as it should have been in 1974. It still gets airplay today, however, showing how much of an impression it leaves on listeners decades later.