You can choose any 5, all sports included. Hell it may even be Tiger Woods or a Soccer team.
Here's mine:
1. LA Lakers - Been a fan since the 1977 Season. Kareem was bigger than life to me when I first started watching as a kid. He was great in Airplane too and gave Bruce Lee a run for his money. Once Magic arrived in the 80's, the Lakers were so Great it wasn't fair! The Shaq/Kobe days were unreal too = a 3Peat from 2000-2002. To me the Greatest Basketball team ever is still the 1987 Lakers. The 1985 win over Boston on their home floor was perhaps my favorite moment in sports history. It was the 1st time the Lakers beat Boston in the Finals, they were 0-7 vs Boston before that. That was for Jerry West and Elgin Baylor! The 1988 Repeat was the Gravy to my Mash Potatoes!
2. Indianapolis Colts - Became a fan in 1984 when they moved to Indy. Loved Eric Dickerson - late 80's, loved Jim Harbaugh - mid 90's, then the Peyton era was unreal. From 2003-2009 the Colts were 89-23 in the Regular Season and won a SB in 2006. Andrew Luck has also took the Colts to an AFC Title Game in 2014. Great franchise here.
3. Chicago Cubs - Have been a fan since 1984 as well, started watching them on WGN that year and they were Very Good that season. Loved Ryne Sandberg, then Andre Dawson was so awesome in 1987 winning League MVP. Finally in 2016 led by League MVP Kris Bryant and Jake Arrieta they won a WS!
4. Indiana Pacers - My 2nd team in the NBA. Living here in Indy I have just always followed them. The Reggie Miller era was Very Good, not Great though because they never won a Title. They did go to the Finals in 2000 where my Lakers beat them. The series's vs the Knicks in 1995 and 1998 were just so classic, Reggie was unreal. It seems like no matter the era, they always put a Very Good product out on the floor from Reggie to PG-13 to Oladipo now.
5. Mike Tyson - When he Boxed it was just an event you had to watch. From 1985-1989 he dominated the Heavy Weight Division by knocking guys silly!