Individual tastes in music, like all art, will always be subjective. There are a ton of subjective lists out there that rank Aerosmith in the top of whatever topic they are talking about. There's also some objective things to look at when considering a band. By almost any objective measure, Aerosmith has been one of the most successful bands of all time...either in the studio with album sales, or touring live.
Here's a few examples:
Top touring artists since 1990
This is my opinion. You generally don't last as long as they have and built the following they have, without being a great live band and putting out lots of music over decades that people love. You may not care for their sound, but they do what they do really well. Stephen Tyler is considered by many to have one of the best rock voices ever and be one of the best frontmen of all time. Joe Perry has influenced a ton of guitar players.
It's blues based rock and roll. It's Chuck Berry turned up to 11. It's one of the best American Rock bands of all time. In my opinion, their music fits pinball perfectly.